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Hypothesis Testing, math homework help
This is a discussion question for MAT300 (Statistics)Hypothesis testing is a pivotal concept in statistics. Hypothesis tes ...
Hypothesis Testing, math homework help
This is a discussion question for MAT300 (Statistics)Hypothesis testing is a pivotal concept in statistics. Hypothesis test is most commonly used when one is attempting to decide the likelihood of something being true within a population or group. Though there is a variance in the ways in which hypothesis testing can be applied ranging from medical studies to advertisements, the steps involved in the process remain constant.After reviewing the readings for this week, describe a situation in which you thought about the value of a measurement and stated a conclusion about the likelihood of that that being true (i.e. Does Dominos pizza really deliver a pizza in 30 minutes or less?). Here’s a link to for additional information on Domino’s Pizza’s 30 minute delivery promise http://www.dominos.co.in/hot-pizza-30-minutes-delivery-guarantee-at-dominos-get-pizza-hot. After your question has been scoped, outline how you would use the steps of hypothesis testing to answer your question?
MAT 243 Southern New Hampshire University Statistical Analysis Projects Report
Use the link in the Jupyter Notebook activity to access your Python script. Once you have made your calculations, complete ...
MAT 243 Southern New Hampshire University Statistical Analysis Projects Report
Use the link in the Jupyter Notebook activity to access your Python script. Once you have made your calculations, complete this discussion. The script will output answers to the questions given below. You must attach your Python script output as an HTML file and respond to the questions below.In this discussion, you will apply the statistical concepts and techniques covered in this week's reading to calculate a confidence interval and perform hypothesis testing for a manufacturing process.The manufacturing process at a factory produces ball bearings that are sold to automotive manufacturers. The factory wants to estimate the average diameter of a ball bearing that is in demand to ensure that it is manufactured within the specifications. Suppose they plan to collect a sample of 50 ball bearings and measure their diameters to construct a 90% and 99% confidence interval for the average diameter of ball bearings produced from this manufacturing process.The sample of size 50 was generated using Python’s numpy module. This data set will be unique to you, and therefore your answers will be unique as well. Run Step 1 in the Python script to generate your unique sample data. Check to make sure your sample data is shown in your attachment.In your initial post, address the following items. Be sure to answer the questions about both confidence intervals and hypothesis testing.In the Python script, you calculated the sample data to construct a 90% and 99% confidence interval for the average diameter of ball bearings produced from this manufacturing process. These confidence intervals were created using the Normal distribution based on the assumption that the population standard deviation is known and the sample size is sufficiently large. Report these confidence intervals rounded to two decimal places. See Step 2 in the Python script.Interpret both confidence intervals. Make sure to be detailed and precise in your interpretation.It has been claimed from previous studies that the average diameter of ball bearings from this manufacturing process is 2.30 cm. Based on the sample of 50 that you collected, is there evidence to suggest that the average diameter is greater than 2.30 cm? Perform a hypothesis test for the population mean at alpha = 0.01.In your initial post, address the following items:Define the null and alternative hypothesis for this test in mathematical terms and in words.Report the level of significance.Include the test statistic and the P-value. See Step 3 in the Python script. (Note that Python methods return two tailed P-values. You must report the correct P-value based on the alternative hypothesis.)Provide your conclusion and interpretation of the results. Should the null hypothesis be rejected? Why or why not?In your follow-up posts to other students, review your peers' calculations and provide some analysis and interpretation:How do their confidence intervals compare with yours?If the population standard deviation is unknown and the sample size is not sufficiently large, would you still use the Normal distribution to calculate these confidence intervals, or would you choose another distribution? If the latter, which distribution would you choose?Remember to attach your Python output and respond to all questions in your initial and follow-up posts. Be sure to clearly communicate your ideas using appropriate terminology. Finally, be sure to review the Discussion Rubric to understand how you will be graded on this assignment.PART 2 :ScenarioYou are a data analyst for a basketball team. You have found a large set of historical data, and are working to analyze and find patterns in the data set. The coach of the team and your management have requested that you use descriptive statistics and data visualization techniques to study distributions of key variables associated with the performance of different teams. Data-driven analytics will help the management make decisions to further improve your team’s performance. You will use the Python programming language to perform your statistical analysis. You will also need to present a report of your findings to the team’s management. Since the managers are not data analysts, you will need to interpret your findings and describe their practical implications. The managers will use your report to find areas where the team can improve its performance.Note: This data set has been “cleaned” for the purposes of this assignment.ReferenceFiveThirtyEight. (April 26, 2019). FiveThirtyEight NBA Elo dataset. Kaggle. Retrieved from https://www.kaggle.com/fivethirtyeight/fivethirtye...DirectionsFor this project, you will submit the Python script you used to make your calculations and a summary report explaining your findings.Python Script: To complete the tasks listed below, open the Project One Jupyter Notebook link in the Assignment Information module. Your project contains the NBA data set and a Jupyter Notebook with your Python scripts. In the notebook, you will find step-by-step instructions and code blocks that will help you complete the following tasks:Choose and create a data visualization.Calculate descriptive statistics including mean, median, min, max, variance, and standard deviation.Construct confidence intervals for a population proportion and a population mean.Summary Report: Once you have completed all the steps in your Python script, you will create a summary report to present your findings. Use the provided template to create your report. You must complete each of the following sections:Introduction: Set the context for your scenario and the analyses you will be performing.Data Visualization: Identify and interpret your chosen data visualization.Descriptive Statistics: Identify and interpret measures of central tendency and variability.Confidence Intervals: Identify and interpret the lower and upper limits of confidence intervals.Conclusion: Summarize your findings and explain their practical implications.What to SubmitTo complete this project, you must submit the following:Python ScriptYour Jupyter Notebook Python script contains all the statistical analyses you completed for this project. You downloaded your work as an HTML file. Review the file to make sure that every step and all your outputs are included. Submit the HTML file as part of your submission. Review the Jupyter Notebook in Codio Tutorial in the Supporting Materials section if you need help.Summary ReportUse the provided template to create your summary report. The template contains guiding questions to help you complete each section. Be sure to remove these questions before submitting your report. Your summary report should be submitted as a 3- to 5-page Microsoft Word document. It should include an APA-style cover page and APA citations for any sources used. Use double spacing, 12-point Times New Roman font, and one-inch margins.Supporting MaterialsThe following resource(s) may help support your work on the project:Document: Jupyter Notebook in Codio TutorialThis tutorial will help you become familiar with the Jupyter Notebook interface. You will learn how to open, complete, save, and download your Jupyter Notebook for this project.Shapiro Library: APA Style GuideThis guide will help you format your cover page and references according to APA style. You are not required to use external resources for this project. However, if you do use any resources, you must cite them in APA format.
5388 The University of Texas at Arlington Statistics in healthcare week
This week we will discuss great research questions for predictive designs. A great research question will include all of ...
5388 The University of Texas at Arlington Statistics in healthcare week
This week we will discuss great research questions for predictive designs. A great research question will include all of the variables, identify the predictor and outcome variable, and will imply the measurement scale of the variables. A great research question will also give you enough information to know what statistic(s) will be appropriate to answer the question. The topic for this week's forum is finding a GREAT research question or research hypothesis from an empirical study. It should be so thoroughly stated that we would all be able to have a good idea of the measurement scale of the variables – all of them should be at least ordinal to require linear regression. GUIDELINESPlease copy and paste ONE question/hypothesis (great ones will be one sentence only) and list the citation. Then tell us why YOU believe the variables involved are ordinal/interval/ratio, and WHY regression – in your words. Please make your postings brief by writing succinctly.
Answer the following questions using what you've learned from this unit. Write your responses in the space provided.
2.5.1 Practice: AssignmentAnswer the following questions using what you've learned from this unit. Write your responses in ...
Answer the following questions using what you've learned from this unit. Write your responses in the space provided.
2.5.1 Practice: AssignmentAnswer the following questions using what you've learned from this unit. Write your responses in the space provided.Scoring: Each correct answer is worth 1 point. Where calculations are needed to find the answer, you must show your work to receive credit.For questions 1 – 7, use the data in the table to answer the probability questions.Franklin High School wanted to see if more boys than girls participated in school sports. A random survey of high school students was conducted, and the results are shown below:NUMBER OF STUDENTSParticipate in school sportsDo not participate in school sportsTotalsMale110180290Female100110210Total2102905001. If a student is chosen at random from those who participated in the survey, what is the probability that the student is a male?Answer choices:0.290.210.580.422. If a student is chosen at random from those who participated in the survey, what is the probability that the student is a male and participates in school sports?Answer choices:0.220.3790.5240.623. If a student is chosen at random from those who participated in the survey, what is the probability that the student participates in sports?Answer choices:0.3790.420.5240.584. If a student is chosen at random from those who participated in the survey, what is the probability that the student participates in school sports, given that the student is a male?Answer choices:0.3790.4760.5240.6215. If a student is chosen at random from those who participated in the survey, what is the probability that the student is male, given that the student participates in sports?Answer choices:0.3790.420.5240.586. To determine whether participating in sports and being male are independent events, which of the given probabilities should you compare? Select two choices.Answer choices:P(participate in sports)P(don't participate in sports)P(male)P(male|don't participate in sports)P(participate in sports|male)P(don't participate in sports|male)7. Are participating in sports and being male independent events?Answer choices:Yes. The probabilities are the same.Yes. The probabilities are different.No. The probabilities are the same.No. The probabilities are different.For questions 8 – 10, use the data in the table to answer the probability questions.A swim coach is deciding which of five swimmers she should put in the free relay at the championship meet, and who should anchor. Each swimmer's best time for 50 yards is between 29 and 30 seconds. To decide, the coach compares how many competitive swims were under 30 seconds. The swimmer who is least likely to swim under 30 seconds will be the alternate, and the swimmer most likely to swim under 30 seconds will be the anchor.Regular SeasonNumber of swims under 30 secondsTotal number of swimsCarson69Ellis1012Prestin811Ryan710Zach10138. Complete the table to identify the probability that each swimmer can swim 50 yards in under 30 seconds during a regular season meet. Enter probabilities as decimals, rounded to two decimal places.Probability of swimming 50 yards in under 30 secondsCarson Ellis Prestin Ryan Zach 9. Which swimmer should the coach choose as alternate?Answer choices:CarsonEllisPrestinRyanZach10. Which swimmer should the coach choose as anchor?Answer choices:CarsonEllisPrestinRyanZachFor questions 11 – 13, use the data in the table to answer the probability questions.Jean is going to pick up treats for a meeting. To make sure she gets back in time, she plans to choose the store that is most likely to have parking nearby and short lines. She estimates the probability of these for two nearby stores. Assume available parking and line lengths are independent.Store AStore BProbability of getting a close parking space0.90.8Probability that lines are short0.750.9511. What is the probability that Jean will find a close parking space and short lines at store A?Answer choices:0.6750.7130.720.7612. What is the probability that Jean will find a close parking space and short lines at store B?Answer choices:0.6750.7130.720.7613. Which store should Jean choose to maximize the probability of finding a nearby parking space and getting in a short line?Answer choices:Store AStore BIt doesn't matter.It can't be determined.For questions 14 – 15, identify the probability for each random number assignment.14. In a randomly generated list of numbers from 0 to 8, what is the probability that each number will occur?Answer choices:\frac{1}{7}71\frac{1}{8}81\frac{1}{9}91\frac{1}{80}80115. A randomly generated list of numbers from 0 to 7 is being used to simulate an event, with the numbers 0 and 1 representing a success. What is the estimated probability of a success?Answer choices:20%25%28.6%33.3%For questions 16 – 20, use the random numbers given and the information in the question to assign numbers and estimate the probability of there being at least one left-handed person in a group of five people.623490244021460709431750694266251090127433656116753938036947692359365436711270487941516204510222785016. About 10 percent of people are left-handed. Using single digits, which would be a correct method of assigning digits?Answer choices:Left-handed: 1; right-handed: 2 – 9Left-handed: 1; right-handed: 2 – 10Left-handed: 0; right-handed: 1 – 9Left-handed: 0; 1 right-handed: 2 – 917. How many trials were included in the simulation?Answer choices:5102010018. Using 0 to represent a left-handed person, how many trials included at least one left-handed person?Answer choices:59111219. What is the estimated probability that there is at least one left-handed person in a group of five people?Answer choices:11%22%50%55%20. If you want to increase the likelihood that your estimated probability is close to the actual probability, what should you do?Answer choices:Change the assignment of digits.Increase the number of trials from 20 to 50.Decrease the number of trials from 20 to 10.Decrease the size of the random number groups from five digits to two.
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Hypothesis Testing, math homework help
This is a discussion question for MAT300 (Statistics)Hypothesis testing is a pivotal concept in statistics. Hypothesis tes ...
Hypothesis Testing, math homework help
This is a discussion question for MAT300 (Statistics)Hypothesis testing is a pivotal concept in statistics. Hypothesis test is most commonly used when one is attempting to decide the likelihood of something being true within a population or group. Though there is a variance in the ways in which hypothesis testing can be applied ranging from medical studies to advertisements, the steps involved in the process remain constant.After reviewing the readings for this week, describe a situation in which you thought about the value of a measurement and stated a conclusion about the likelihood of that that being true (i.e. Does Dominos pizza really deliver a pizza in 30 minutes or less?). Here’s a link to for additional information on Domino’s Pizza’s 30 minute delivery promise http://www.dominos.co.in/hot-pizza-30-minutes-delivery-guarantee-at-dominos-get-pizza-hot. After your question has been scoped, outline how you would use the steps of hypothesis testing to answer your question?
MAT 243 Southern New Hampshire University Statistical Analysis Projects Report
Use the link in the Jupyter Notebook activity to access your Python script. Once you have made your calculations, complete ...
MAT 243 Southern New Hampshire University Statistical Analysis Projects Report
Use the link in the Jupyter Notebook activity to access your Python script. Once you have made your calculations, complete this discussion. The script will output answers to the questions given below. You must attach your Python script output as an HTML file and respond to the questions below.In this discussion, you will apply the statistical concepts and techniques covered in this week's reading to calculate a confidence interval and perform hypothesis testing for a manufacturing process.The manufacturing process at a factory produces ball bearings that are sold to automotive manufacturers. The factory wants to estimate the average diameter of a ball bearing that is in demand to ensure that it is manufactured within the specifications. Suppose they plan to collect a sample of 50 ball bearings and measure their diameters to construct a 90% and 99% confidence interval for the average diameter of ball bearings produced from this manufacturing process.The sample of size 50 was generated using Python’s numpy module. This data set will be unique to you, and therefore your answers will be unique as well. Run Step 1 in the Python script to generate your unique sample data. Check to make sure your sample data is shown in your attachment.In your initial post, address the following items. Be sure to answer the questions about both confidence intervals and hypothesis testing.In the Python script, you calculated the sample data to construct a 90% and 99% confidence interval for the average diameter of ball bearings produced from this manufacturing process. These confidence intervals were created using the Normal distribution based on the assumption that the population standard deviation is known and the sample size is sufficiently large. Report these confidence intervals rounded to two decimal places. See Step 2 in the Python script.Interpret both confidence intervals. Make sure to be detailed and precise in your interpretation.It has been claimed from previous studies that the average diameter of ball bearings from this manufacturing process is 2.30 cm. Based on the sample of 50 that you collected, is there evidence to suggest that the average diameter is greater than 2.30 cm? Perform a hypothesis test for the population mean at alpha = 0.01.In your initial post, address the following items:Define the null and alternative hypothesis for this test in mathematical terms and in words.Report the level of significance.Include the test statistic and the P-value. See Step 3 in the Python script. (Note that Python methods return two tailed P-values. You must report the correct P-value based on the alternative hypothesis.)Provide your conclusion and interpretation of the results. Should the null hypothesis be rejected? Why or why not?In your follow-up posts to other students, review your peers' calculations and provide some analysis and interpretation:How do their confidence intervals compare with yours?If the population standard deviation is unknown and the sample size is not sufficiently large, would you still use the Normal distribution to calculate these confidence intervals, or would you choose another distribution? If the latter, which distribution would you choose?Remember to attach your Python output and respond to all questions in your initial and follow-up posts. Be sure to clearly communicate your ideas using appropriate terminology. Finally, be sure to review the Discussion Rubric to understand how you will be graded on this assignment.PART 2 :ScenarioYou are a data analyst for a basketball team. You have found a large set of historical data, and are working to analyze and find patterns in the data set. The coach of the team and your management have requested that you use descriptive statistics and data visualization techniques to study distributions of key variables associated with the performance of different teams. Data-driven analytics will help the management make decisions to further improve your team’s performance. You will use the Python programming language to perform your statistical analysis. You will also need to present a report of your findings to the team’s management. Since the managers are not data analysts, you will need to interpret your findings and describe their practical implications. The managers will use your report to find areas where the team can improve its performance.Note: This data set has been “cleaned” for the purposes of this assignment.ReferenceFiveThirtyEight. (April 26, 2019). FiveThirtyEight NBA Elo dataset. Kaggle. Retrieved from https://www.kaggle.com/fivethirtyeight/fivethirtye...DirectionsFor this project, you will submit the Python script you used to make your calculations and a summary report explaining your findings.Python Script: To complete the tasks listed below, open the Project One Jupyter Notebook link in the Assignment Information module. Your project contains the NBA data set and a Jupyter Notebook with your Python scripts. In the notebook, you will find step-by-step instructions and code blocks that will help you complete the following tasks:Choose and create a data visualization.Calculate descriptive statistics including mean, median, min, max, variance, and standard deviation.Construct confidence intervals for a population proportion and a population mean.Summary Report: Once you have completed all the steps in your Python script, you will create a summary report to present your findings. Use the provided template to create your report. You must complete each of the following sections:Introduction: Set the context for your scenario and the analyses you will be performing.Data Visualization: Identify and interpret your chosen data visualization.Descriptive Statistics: Identify and interpret measures of central tendency and variability.Confidence Intervals: Identify and interpret the lower and upper limits of confidence intervals.Conclusion: Summarize your findings and explain their practical implications.What to SubmitTo complete this project, you must submit the following:Python ScriptYour Jupyter Notebook Python script contains all the statistical analyses you completed for this project. You downloaded your work as an HTML file. Review the file to make sure that every step and all your outputs are included. Submit the HTML file as part of your submission. Review the Jupyter Notebook in Codio Tutorial in the Supporting Materials section if you need help.Summary ReportUse the provided template to create your summary report. The template contains guiding questions to help you complete each section. Be sure to remove these questions before submitting your report. Your summary report should be submitted as a 3- to 5-page Microsoft Word document. It should include an APA-style cover page and APA citations for any sources used. Use double spacing, 12-point Times New Roman font, and one-inch margins.Supporting MaterialsThe following resource(s) may help support your work on the project:Document: Jupyter Notebook in Codio TutorialThis tutorial will help you become familiar with the Jupyter Notebook interface. You will learn how to open, complete, save, and download your Jupyter Notebook for this project.Shapiro Library: APA Style GuideThis guide will help you format your cover page and references according to APA style. You are not required to use external resources for this project. However, if you do use any resources, you must cite them in APA format.
5388 The University of Texas at Arlington Statistics in healthcare week
This week we will discuss great research questions for predictive designs. A great research question will include all of ...
5388 The University of Texas at Arlington Statistics in healthcare week
This week we will discuss great research questions for predictive designs. A great research question will include all of the variables, identify the predictor and outcome variable, and will imply the measurement scale of the variables. A great research question will also give you enough information to know what statistic(s) will be appropriate to answer the question. The topic for this week's forum is finding a GREAT research question or research hypothesis from an empirical study. It should be so thoroughly stated that we would all be able to have a good idea of the measurement scale of the variables – all of them should be at least ordinal to require linear regression. GUIDELINESPlease copy and paste ONE question/hypothesis (great ones will be one sentence only) and list the citation. Then tell us why YOU believe the variables involved are ordinal/interval/ratio, and WHY regression – in your words. Please make your postings brief by writing succinctly.
Answer the following questions using what you've learned from this unit. Write your responses in the space provided.
2.5.1 Practice: AssignmentAnswer the following questions using what you've learned from this unit. Write your responses in ...
Answer the following questions using what you've learned from this unit. Write your responses in the space provided.
2.5.1 Practice: AssignmentAnswer the following questions using what you've learned from this unit. Write your responses in the space provided.Scoring: Each correct answer is worth 1 point. Where calculations are needed to find the answer, you must show your work to receive credit.For questions 1 – 7, use the data in the table to answer the probability questions.Franklin High School wanted to see if more boys than girls participated in school sports. A random survey of high school students was conducted, and the results are shown below:NUMBER OF STUDENTSParticipate in school sportsDo not participate in school sportsTotalsMale110180290Female100110210Total2102905001. If a student is chosen at random from those who participated in the survey, what is the probability that the student is a male?Answer choices:0.290.210.580.422. If a student is chosen at random from those who participated in the survey, what is the probability that the student is a male and participates in school sports?Answer choices:0.220.3790.5240.623. If a student is chosen at random from those who participated in the survey, what is the probability that the student participates in sports?Answer choices:0.3790.420.5240.584. If a student is chosen at random from those who participated in the survey, what is the probability that the student participates in school sports, given that the student is a male?Answer choices:0.3790.4760.5240.6215. If a student is chosen at random from those who participated in the survey, what is the probability that the student is male, given that the student participates in sports?Answer choices:0.3790.420.5240.586. To determine whether participating in sports and being male are independent events, which of the given probabilities should you compare? Select two choices.Answer choices:P(participate in sports)P(don't participate in sports)P(male)P(male|don't participate in sports)P(participate in sports|male)P(don't participate in sports|male)7. Are participating in sports and being male independent events?Answer choices:Yes. The probabilities are the same.Yes. The probabilities are different.No. The probabilities are the same.No. The probabilities are different.For questions 8 – 10, use the data in the table to answer the probability questions.A swim coach is deciding which of five swimmers she should put in the free relay at the championship meet, and who should anchor. Each swimmer's best time for 50 yards is between 29 and 30 seconds. To decide, the coach compares how many competitive swims were under 30 seconds. The swimmer who is least likely to swim under 30 seconds will be the alternate, and the swimmer most likely to swim under 30 seconds will be the anchor.Regular SeasonNumber of swims under 30 secondsTotal number of swimsCarson69Ellis1012Prestin811Ryan710Zach10138. Complete the table to identify the probability that each swimmer can swim 50 yards in under 30 seconds during a regular season meet. Enter probabilities as decimals, rounded to two decimal places.Probability of swimming 50 yards in under 30 secondsCarson Ellis Prestin Ryan Zach 9. Which swimmer should the coach choose as alternate?Answer choices:CarsonEllisPrestinRyanZach10. Which swimmer should the coach choose as anchor?Answer choices:CarsonEllisPrestinRyanZachFor questions 11 – 13, use the data in the table to answer the probability questions.Jean is going to pick up treats for a meeting. To make sure she gets back in time, she plans to choose the store that is most likely to have parking nearby and short lines. She estimates the probability of these for two nearby stores. Assume available parking and line lengths are independent.Store AStore BProbability of getting a close parking space0.90.8Probability that lines are short0.750.9511. What is the probability that Jean will find a close parking space and short lines at store A?Answer choices:0.6750.7130.720.7612. What is the probability that Jean will find a close parking space and short lines at store B?Answer choices:0.6750.7130.720.7613. Which store should Jean choose to maximize the probability of finding a nearby parking space and getting in a short line?Answer choices:Store AStore BIt doesn't matter.It can't be determined.For questions 14 – 15, identify the probability for each random number assignment.14. In a randomly generated list of numbers from 0 to 8, what is the probability that each number will occur?Answer choices:\frac{1}{7}71\frac{1}{8}81\frac{1}{9}91\frac{1}{80}80115. A randomly generated list of numbers from 0 to 7 is being used to simulate an event, with the numbers 0 and 1 representing a success. What is the estimated probability of a success?Answer choices:20%25%28.6%33.3%For questions 16 – 20, use the random numbers given and the information in the question to assign numbers and estimate the probability of there being at least one left-handed person in a group of five people.623490244021460709431750694266251090127433656116753938036947692359365436711270487941516204510222785016. About 10 percent of people are left-handed. Using single digits, which would be a correct method of assigning digits?Answer choices:Left-handed: 1; right-handed: 2 – 9Left-handed: 1; right-handed: 2 – 10Left-handed: 0; right-handed: 1 – 9Left-handed: 0; 1 right-handed: 2 – 917. How many trials were included in the simulation?Answer choices:5102010018. Using 0 to represent a left-handed person, how many trials included at least one left-handed person?Answer choices:59111219. What is the estimated probability that there is at least one left-handed person in a group of five people?Answer choices:11%22%50%55%20. If you want to increase the likelihood that your estimated probability is close to the actual probability, what should you do?Answer choices:Change the assignment of digits.Increase the number of trials from 20 to 50.Decrease the number of trials from 20 to 10.Decrease the size of the random number groups from five digits to two.
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