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0.096 divided by 0.12
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0.096 divided by 0.12 is equal to 0.8. This is because we divide .096 by .12 which results in the answer .08. It can also be represented as 4/5. ChaCha o
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Statistics MTH128
Homework questions MTH128. There is 30 questions to answer, see below the name of the book. Elementary Statistics: Picturi ...
Statistics MTH128
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Multiple Regression
This Discussion assists in solidifying your understanding of statistical testing by engaging in some data analysis. This w ...
Multiple Regression
This Discussion assists in solidifying your understanding of statistical testing by engaging in some data analysis. This week you will once again work with a real, secondary dataset to construct a research question, estimate a multiple regression model, and interpret the results.Whether in a scholarly or practitioner setting, good research and data analysis should have the benefit of peer feedback. For this Discussion, you will post your response to the hypothesis test, along with the results. Be sure and remember that the goal is to obtain constructive feedback to improve the research and its interpretation, so please view this as an opportunity to learn from one another.To prepare for this Discussion:Review the Learning Resources and media program related to multiple regression that are attached.Create a research question using the General Social Survey that can be answered by multiple regression.To complete the assignment:Use SPSS to answer the research question. Post your response to the following:What is your research question?What is the null hypothesis for your question?What research design would align with this question?What dependent variable was used and how is it measured?What independent variable is used and how is it measured?What other variables were added to the multiple regression models as controls?What is the justification for adding the variables?If you found significance, what is the strength of the effect? Explain your results for a lay audience, explain what the answer to your research question.Follow the attached guidelines for assistance when completing the assignment.Be sure to use proper APA format, citations, and referencing.
Smallpox Controversy To Inoculate or Not to Inoculate Problem Questions
Daniel Bernoulli's work in 1760 had the goal of appraising the effectiveness of a controversial inoculation program agains ...
Smallpox Controversy To Inoculate or Not to Inoculate Problem Questions
Daniel Bernoulli's work in 1760 had the goal of appraising the effectiveness of a controversial inoculation program against smallpox, which at that time was a major threat to public health.Question 1. Who was Daniel Bernoulli?Why was he working on this project?Bernoulli's model applies equally well to any other disease that, once contracted and survived, confers a lifetime immunity.Consider the cohort of individuals born in a given year𝑡=0t=0, and let𝑛(𝑡)n(t) be the number of these individuals surviving 𝑡t years later.Let 𝑥(𝑡)x(t)be the number of members of this cohort who have not had smallpox by year 𝑡t and who are therefore still susceptible. Let 𝛽β be the rate at which susceptibles contract smallpox, and let 𝜈ν be the rate at which people who contract smallpox die from the disease. Finally, let 𝜇(𝑡)μ(t) be the death rate from all causes other than smallpox. Then 𝑑𝑥𝑑𝑡dxdt, the rate at which the number of susceptibles declines, is given by𝑑𝑥𝑑𝑡=−[𝛽+𝜇(𝑡)]𝑥dxdt=−[β+μ(t)]x (1)The first term on the right of Eq.1 is the rate at which susceptibles contract smallpox, and the second term is the rate at which they die from all other causes. Also,𝑑𝑛𝑑𝑡=−𝜈𝛽𝑥−𝜇(𝑡)𝑛dndt=−νβx−μ(t)n, (2)where 𝑑𝑛𝑑𝑡dndt is the death rate of the entire cohort, and the two terms on the right side are the death rates due to smallpox and to all other causes, respectively.Introduce a new variable 𝑧(𝑡)=𝑥(𝑡)𝑛(𝑡).z(t)=x(t)n(t).Question 2.Formulatetheinitial value problem for 𝑧(𝑡)z(t).Question 3. Find the complete general solution to differential equation in Q.2 equation.Question 4. Find the solution to the initial value problem.Question 5. Draw the slope field( by hand, or with DField oruse MATLAB, for example, ode45) for this equation and draw some representative solutions. What does this picture tell youabout the solution to this initial value problem.Question 6.Does the solutionin Q.5 agree with your analysis in Q. 4?Question 5. Bernoulli estimated that 𝜈=𝛽=1/8ν=β=1/8.With that in mind, determine the proportion of 20-year-olds who have not had smallpox.On the basis of the model just described and the best mortality data available at the time, Bernoulli calculated that if deaths due to smallpox could be eliminated, 𝜈=0ν=0, then the life expectancy among inoculated will increase by almost 10%.Question 6. Check the internet for the information about what was the life expectancy in 1760 in the country where Bernoulli lived. How would the inoculation program change it?As a result of this study,Bernoullisupported the inoculation program.
Statistics Assignment
Hypothesis testing is the foundation of conducting research in psychology. Researchers must first determine the question t ...
Statistics Assignment
Hypothesis testing is the foundation of conducting research in psychology. Researchers must first determine the question they wish to answer and then state their prediction in a null hypothesis and an alternative hypothesis. Once the hypotheses are stated, researchers move on to data collection. However, once the results come in, the real challenge is to determine if they have meaning; that is, are the results statistically significant or just due to random variation? This application will allow you to practice hypothesis testing by using z-scores to compare a single score to a population mean in order to determine if results are statistically significant. Scenario: Lucy wants to know how her fourth-grade daughter, Monica, scored on a test of reading comprehension compared to the population of other fourth graders in the school district. Luckily, Lucy has taken this course and knows that a z-score will help her understand Monica’s reading score in relation to the population. You can find the data for this Assignment below:Data Set: Monica’s reading comprehension score = 61 Mean fourth grade reading comprehension score = 54 Standard deviation of the fourth grade’s reading comprehension = 2.4 Monica’s z-score in math = 1.10 Mean fourth grade math score = 151 Standard deviation of the fourth grade’s math scores = 12.2 To complete this Assignment, submit responses to the following: State the dependent variable. A dependent variable measures the behavior or attitude of a participant and depends on the participant’s reaction to a condition, or the category of the independent variable that creates the situation under which participants are studied (Heiman, 2015). In this scenario, the dependent variable is Monica’s test scores because they depend on her reaction to the independent variable, which in this case are her reading and math tests. PLEASE CHECK MY ANSWER2. Explain whether Lucy should use a one-tailed or a two-tailed z-test and explain why. A one-tailed test is preformed when you want to predict that the dependent scores, in this case Monica’s test score, will only increase or will only decrease (Heiman, 2015). A two-tailed test is used when you do not predict whether dependent scores will increase or decrease Heiman, 2015). Since it is not indicated in this week’s instructions that Lucy did or want to make any predictions about Monica’s tests score and a , I suggest that she use a two-tailed test z-test. PLEASE CHECK MY ANSWER3. State the null hypothesis in words (not formulas).4. State the alternative hypothesis in words (not formulas).5. Calculate the obtained z-score by hand. Describe your calculations (i.e., show your work).To obtain Monica’s z-score for reading, I had to subtract her raw reading comprehension score of 61 by the mean of all fourth grade reading comprehension scores , which is 54. Then I divided the difference of 7 by the standard deviation of the fourth grade’s reading comprehension, 7 divided by 2.4 is 2.92, which brings me to the conclusion that the z-score for Monica’s reading comprehension is positive 2.92 and it fall above the mean by 2.92 standard deviations (Heiman, 2015).Z= (61-54)/2.4Z= 2.92PLEASE CHECK MY ANSWER6. When alpha is set at .05, the critical value is ± 1.96. Should the null hypothesis be retained or rejected? Explain why. When alpha is set at .05 and the critical value is negative or positive 1.96, the null hypothesis should be rejected because.......THIS IS NOT ANSWER, I TRIED TO UNDERSTAND THIS BUT I AM LOST7. Are the results statistically significant? How do you know?8.What should Lucy conclude about Monica’s reading comprehension score in comparison to the population? PLEASE FULLY EXPLAIN ALL CALCULATIONS AND ANSWERS TO QUESTIONS
STAT 3215 Rasmussen College Salary Distributions of Jobs in Minnesota Worksheet
CompetencyGiven a real-life application, develop a hypothesis test for a population parameter and its interpretation.Instr ...
STAT 3215 Rasmussen College Salary Distributions of Jobs in Minnesota Worksheet
CompetencyGiven a real-life application, develop a hypothesis test for a population parameter and its interpretation.InstructionsScenario (information repeated for deliverable 01, 03, and 04)A major client of your company is interested in the salary distributions of jobs in the state of Minnesota that range from $30,000 to $200,000 per year. As a Business Analyst, your boss asks you to research and analyze the salary distributions. You are given a spreadsheet that contains the following information:A listing of the jobs by titleThe salary (in dollars) for each jobIn prior engagements, you have already explained to your client about the basic statistics and discussed the importance of constructing confidence intervals for the population mean. Your client says that he remembers a little bit about hypothesis testing, but he is a little fuzzy. He asks you to give him the full explanation of all steps in a hypothesis testing and wants your conclusion about a claim that the average salary for all jobs in the state of Minnesota is less than $74,500 and a second claim that the average salary for all jobs in the state of Minnesota is greater than $70,500.Background information on the DataThe data set in the spreadsheet consists of 364 records that you will be analyzing from the Bureau of Labor Statistics. The data set contains a listing of several jobs titles with yearly salaries ranging from approximately $30,000 to $200,000 for the state of Minnesota.What to SubmitYour boss wants you to submit the spreadsheet with the completed calculations, answers, and analysis.Grading RubricFFCBA01234Not SubmittedNo PassCompetenceProficiencyMasteryNot SubmittedDid not correctly solve a majority of the problems or at least one problem left blank.Correctly solved a majority of the problems.Correctly solved almost all the problems.All problems are solved correctly.Not SubmittedVery few steps are provided to explain how to solve the problem OR the steps provided have several errors.Fairly complete and detailed steps are provided to explain how to solve the problem OR the steps provided have some errors.Mostly complete and detailed steps are provided to explain how to solve the problem.Complete and detailed steps are provided to explain how to solve the problem.Not SubmittedExplanations generally lack a basic understanding of the statistical concepts or lack of proper terminology.Explanations demonstrate a basic understanding of most of the statistical concepts and terminology, but some explanations may be incomplete or incorrect.Explanations demonstrate a proficient understanding of most of the statistical concepts and terminology, but with small errors.Explanations demonstrate a mastery of understanding of the statistical concepts and terminology.Not SubmittedThe majority of variables, equations, and expressions are not properly formatted.The majority of variables, equations, and expressions are properly formatted.Almost all variables, equations, and expressions are properly formatted.All variables, equations, and expressions are properly formatted.
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Statistics MTH128
Homework questions MTH128. There is 30 questions to answer, see below the name of the book. Elementary Statistics: Picturi ...
Statistics MTH128
Homework questions MTH128. There is 30 questions to answer, see below the name of the book. Elementary Statistics: Picturing the World Six Edition Ron Larson and Betsy Farber
Multiple Regression
This Discussion assists in solidifying your understanding of statistical testing by engaging in some data analysis. This w ...
Multiple Regression
This Discussion assists in solidifying your understanding of statistical testing by engaging in some data analysis. This week you will once again work with a real, secondary dataset to construct a research question, estimate a multiple regression model, and interpret the results.Whether in a scholarly or practitioner setting, good research and data analysis should have the benefit of peer feedback. For this Discussion, you will post your response to the hypothesis test, along with the results. Be sure and remember that the goal is to obtain constructive feedback to improve the research and its interpretation, so please view this as an opportunity to learn from one another.To prepare for this Discussion:Review the Learning Resources and media program related to multiple regression that are attached.Create a research question using the General Social Survey that can be answered by multiple regression.To complete the assignment:Use SPSS to answer the research question. Post your response to the following:What is your research question?What is the null hypothesis for your question?What research design would align with this question?What dependent variable was used and how is it measured?What independent variable is used and how is it measured?What other variables were added to the multiple regression models as controls?What is the justification for adding the variables?If you found significance, what is the strength of the effect? Explain your results for a lay audience, explain what the answer to your research question.Follow the attached guidelines for assistance when completing the assignment.Be sure to use proper APA format, citations, and referencing.
Smallpox Controversy To Inoculate or Not to Inoculate Problem Questions
Daniel Bernoulli's work in 1760 had the goal of appraising the effectiveness of a controversial inoculation program agains ...
Smallpox Controversy To Inoculate or Not to Inoculate Problem Questions
Daniel Bernoulli's work in 1760 had the goal of appraising the effectiveness of a controversial inoculation program against smallpox, which at that time was a major threat to public health.Question 1. Who was Daniel Bernoulli?Why was he working on this project?Bernoulli's model applies equally well to any other disease that, once contracted and survived, confers a lifetime immunity.Consider the cohort of individuals born in a given year𝑡=0t=0, and let𝑛(𝑡)n(t) be the number of these individuals surviving 𝑡t years later.Let 𝑥(𝑡)x(t)be the number of members of this cohort who have not had smallpox by year 𝑡t and who are therefore still susceptible. Let 𝛽β be the rate at which susceptibles contract smallpox, and let 𝜈ν be the rate at which people who contract smallpox die from the disease. Finally, let 𝜇(𝑡)μ(t) be the death rate from all causes other than smallpox. Then 𝑑𝑥𝑑𝑡dxdt, the rate at which the number of susceptibles declines, is given by𝑑𝑥𝑑𝑡=−[𝛽+𝜇(𝑡)]𝑥dxdt=−[β+μ(t)]x (1)The first term on the right of Eq.1 is the rate at which susceptibles contract smallpox, and the second term is the rate at which they die from all other causes. Also,𝑑𝑛𝑑𝑡=−𝜈𝛽𝑥−𝜇(𝑡)𝑛dndt=−νβx−μ(t)n, (2)where 𝑑𝑛𝑑𝑡dndt is the death rate of the entire cohort, and the two terms on the right side are the death rates due to smallpox and to all other causes, respectively.Introduce a new variable 𝑧(𝑡)=𝑥(𝑡)𝑛(𝑡).z(t)=x(t)n(t).Question 2.Formulatetheinitial value problem for 𝑧(𝑡)z(t).Question 3. Find the complete general solution to differential equation in Q.2 equation.Question 4. Find the solution to the initial value problem.Question 5. Draw the slope field( by hand, or with DField oruse MATLAB, for example, ode45) for this equation and draw some representative solutions. What does this picture tell youabout the solution to this initial value problem.Question 6.Does the solutionin Q.5 agree with your analysis in Q. 4?Question 5. Bernoulli estimated that 𝜈=𝛽=1/8ν=β=1/8.With that in mind, determine the proportion of 20-year-olds who have not had smallpox.On the basis of the model just described and the best mortality data available at the time, Bernoulli calculated that if deaths due to smallpox could be eliminated, 𝜈=0ν=0, then the life expectancy among inoculated will increase by almost 10%.Question 6. Check the internet for the information about what was the life expectancy in 1760 in the country where Bernoulli lived. How would the inoculation program change it?As a result of this study,Bernoullisupported the inoculation program.
Statistics Assignment
Hypothesis testing is the foundation of conducting research in psychology. Researchers must first determine the question t ...
Statistics Assignment
Hypothesis testing is the foundation of conducting research in psychology. Researchers must first determine the question they wish to answer and then state their prediction in a null hypothesis and an alternative hypothesis. Once the hypotheses are stated, researchers move on to data collection. However, once the results come in, the real challenge is to determine if they have meaning; that is, are the results statistically significant or just due to random variation? This application will allow you to practice hypothesis testing by using z-scores to compare a single score to a population mean in order to determine if results are statistically significant. Scenario: Lucy wants to know how her fourth-grade daughter, Monica, scored on a test of reading comprehension compared to the population of other fourth graders in the school district. Luckily, Lucy has taken this course and knows that a z-score will help her understand Monica’s reading score in relation to the population. You can find the data for this Assignment below:Data Set: Monica’s reading comprehension score = 61 Mean fourth grade reading comprehension score = 54 Standard deviation of the fourth grade’s reading comprehension = 2.4 Monica’s z-score in math = 1.10 Mean fourth grade math score = 151 Standard deviation of the fourth grade’s math scores = 12.2 To complete this Assignment, submit responses to the following: State the dependent variable. A dependent variable measures the behavior or attitude of a participant and depends on the participant’s reaction to a condition, or the category of the independent variable that creates the situation under which participants are studied (Heiman, 2015). In this scenario, the dependent variable is Monica’s test scores because they depend on her reaction to the independent variable, which in this case are her reading and math tests. PLEASE CHECK MY ANSWER2. Explain whether Lucy should use a one-tailed or a two-tailed z-test and explain why. A one-tailed test is preformed when you want to predict that the dependent scores, in this case Monica’s test score, will only increase or will only decrease (Heiman, 2015). A two-tailed test is used when you do not predict whether dependent scores will increase or decrease Heiman, 2015). Since it is not indicated in this week’s instructions that Lucy did or want to make any predictions about Monica’s tests score and a , I suggest that she use a two-tailed test z-test. PLEASE CHECK MY ANSWER3. State the null hypothesis in words (not formulas).4. State the alternative hypothesis in words (not formulas).5. Calculate the obtained z-score by hand. Describe your calculations (i.e., show your work).To obtain Monica’s z-score for reading, I had to subtract her raw reading comprehension score of 61 by the mean of all fourth grade reading comprehension scores , which is 54. Then I divided the difference of 7 by the standard deviation of the fourth grade’s reading comprehension, 7 divided by 2.4 is 2.92, which brings me to the conclusion that the z-score for Monica’s reading comprehension is positive 2.92 and it fall above the mean by 2.92 standard deviations (Heiman, 2015).Z= (61-54)/2.4Z= 2.92PLEASE CHECK MY ANSWER6. When alpha is set at .05, the critical value is ± 1.96. Should the null hypothesis be retained or rejected? Explain why. When alpha is set at .05 and the critical value is negative or positive 1.96, the null hypothesis should be rejected because.......THIS IS NOT ANSWER, I TRIED TO UNDERSTAND THIS BUT I AM LOST7. Are the results statistically significant? How do you know?8.What should Lucy conclude about Monica’s reading comprehension score in comparison to the population? PLEASE FULLY EXPLAIN ALL CALCULATIONS AND ANSWERS TO QUESTIONS
STAT 3215 Rasmussen College Salary Distributions of Jobs in Minnesota Worksheet
CompetencyGiven a real-life application, develop a hypothesis test for a population parameter and its interpretation.Instr ...
STAT 3215 Rasmussen College Salary Distributions of Jobs in Minnesota Worksheet
CompetencyGiven a real-life application, develop a hypothesis test for a population parameter and its interpretation.InstructionsScenario (information repeated for deliverable 01, 03, and 04)A major client of your company is interested in the salary distributions of jobs in the state of Minnesota that range from $30,000 to $200,000 per year. As a Business Analyst, your boss asks you to research and analyze the salary distributions. You are given a spreadsheet that contains the following information:A listing of the jobs by titleThe salary (in dollars) for each jobIn prior engagements, you have already explained to your client about the basic statistics and discussed the importance of constructing confidence intervals for the population mean. Your client says that he remembers a little bit about hypothesis testing, but he is a little fuzzy. He asks you to give him the full explanation of all steps in a hypothesis testing and wants your conclusion about a claim that the average salary for all jobs in the state of Minnesota is less than $74,500 and a second claim that the average salary for all jobs in the state of Minnesota is greater than $70,500.Background information on the DataThe data set in the spreadsheet consists of 364 records that you will be analyzing from the Bureau of Labor Statistics. The data set contains a listing of several jobs titles with yearly salaries ranging from approximately $30,000 to $200,000 for the state of Minnesota.What to SubmitYour boss wants you to submit the spreadsheet with the completed calculations, answers, and analysis.Grading RubricFFCBA01234Not SubmittedNo PassCompetenceProficiencyMasteryNot SubmittedDid not correctly solve a majority of the problems or at least one problem left blank.Correctly solved a majority of the problems.Correctly solved almost all the problems.All problems are solved correctly.Not SubmittedVery few steps are provided to explain how to solve the problem OR the steps provided have several errors.Fairly complete and detailed steps are provided to explain how to solve the problem OR the steps provided have some errors.Mostly complete and detailed steps are provided to explain how to solve the problem.Complete and detailed steps are provided to explain how to solve the problem.Not SubmittedExplanations generally lack a basic understanding of the statistical concepts or lack of proper terminology.Explanations demonstrate a basic understanding of most of the statistical concepts and terminology, but some explanations may be incomplete or incorrect.Explanations demonstrate a proficient understanding of most of the statistical concepts and terminology, but with small errors.Explanations demonstrate a mastery of understanding of the statistical concepts and terminology.Not SubmittedThe majority of variables, equations, and expressions are not properly formatted.The majority of variables, equations, and expressions are properly formatted.Almost all variables, equations, and expressions are properly formatted.All variables, equations, and expressions are properly formatted.
3 pages
Mat101h Wk10 Assignment 2 11 19 1
Ratio and proportion can be used for many things in everyday life. A ratio is a relationship between two numbers indicatin ...
Mat101h Wk10 Assignment 2 11 19 1
Ratio and proportion can be used for many things in everyday life. A ratio is a relationship between two numbers indicating how many times the first ...
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