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Probability Distribution (Excel)
1. Packages delivered from a local distribution center to their final destination vary between 30 and 240 minutes, and fol ...
Probability Distribution (Excel)
1. Packages delivered from a local distribution center to their final destination vary between 30 and 240 minutes, and follow a uniform distribution. a. What is the expected value of time it takes for parcels to arrive at their final destination.b. What is the probability that a package takes 60-120 minutes to arrive?c. What is the likelihood that a package takes more than 200 minutes?d. What is the probability that a package takes less than 100 minutes?2. A fleet of vehicles requiring regular maintenance typically cost $980 per month, with a standard deviation of $100, and follow a normal distribution. Two repairs completed recently, costing $1093 and 937, are being assessed to see if the costs are comparable to typical costs. Compute the z-value for each of these costs and comment on the value relative to typical costs.3. The income for mid-level executives is normally distributed, with a mean of $110,000 and standard deviation of $18,000. a. What is the probability of finding an executive whose income is greater than $125,000? b. What is the likelihood of finding an executive who income is less than $115,000? c. What is the probability of finding an executive who income is between $100,000 and $110,000?4. A retail store maintains inventory so that the likelihood of running out of stack (i.e. a stock out) is 5%. If the store anticipates demand for an item to be 10 units per month, with a standard deviation of 1, how many units should be kept in stock? Assume demand is normally distributed, and round your answer to the nearest whole number that ensures stock outs occur no more than 5% of the time.
Mode and Median probability, statistics homework help
1. Read the webpage, https://en.wikipedia.org/wiki/Binomial_distribution , down to the section, Mode and Me ...
Mode and Median probability, statistics homework help
1. Read the webpage, https://en.wikipedia.org/wiki/Binomial_distribution , down to the section, Mode and Median. Read thoroughly the example about the biased coin that comes up heads with probability of 0.3. This variable can be described as, X~Bi(n=6, p=0.3). Use this example to answer the following questions.a. What is the expected value of this variable? b. What is the expected number of heads if this coin is tossed 6 times? Same answer as in part 2.a. but in different words.c. What is the probability that the number of heads out of 6 tosses of this unfair coin is less than 2?d. What is the probability that the number of heads out of 6 tosses of this unfair coin is more than 2?e. What is the probability that the number of heads out of 6 tosses of this unfair coin is at least 2?f. What is the probability that the number of heads out of 6 tosses of this unfair coin is at most 2?2. Assume that 25% of all accounting audits identify an accounting error and that 8 audits were completed. The variable of interest is the number of audits that identify an accounting error out of the 8 audits. The distribution of this variable is described as X~Bi(n=8, p=0.25). Use this information to answer the questions below. Use this online calculator, if you want: http://stattrek.com/online-calculator/binomial.aspxa. What is the expected number of audits that will identify accounting errors?b. What is the probability of 2 or more accounting errors being identified in the 8 audits?c. What is the probability of 3 or more accounting errors being identified in the 8 audits?d. What is the probability of 4 or more accounting errors being identified in the 8 audits?e. What is the probability of 5 or more accounting errors being identified in the 8 audits?f. What is the probability of 6 or more accounting errors being identified in the 8 audits?g. What is the probability of 7 or more accounting errors being identified in the 8 audits?h. What is the probability of 8 or more accounting errors being identified in the 8 audits?
3 pages
Infinite Series
1) 1/2. The series converges and the sum is 1/2, the summation of this series starts at 1 and not 0. The answer remains th ...
Infinite Series
1) 1/2. The series converges and the sum is 1/2, the summation of this series starts at 1 and not 0. The answer remains the same when calculated ...
WU Quantitative Reasoning & Analysis Multiple Regression in Practice Discussion
For this Assignment, you will continue your practice as a critical consumer of research. You will critically evaluate a sc ...
WU Quantitative Reasoning & Analysis Multiple Regression in Practice Discussion
For this Assignment, you will continue your practice as a critical consumer of research. You will critically evaluate a scholarly article related to multiple regression. Search for a quantitative article that includes multiple regression testing.Write a 3- to 5-paragraphs critique of the article (2 to 3 pages). In your critique, include responses to the following:
Why did the authors use multiple regression?
Do you think it’s the most appropriate choice? Why or why not?
Did the authors display the data?
Do the results stand alone? Why or why not?
Did the authors report effect size? If yes, is this meaningful?
Use proper APA format, citations, and referencing.Required Readings
Frankfort-Nachmias, C., & Leon-Guerrero, A. (2018). Social statistics for a diverse society (8th ed.). Thousand Oaks, CA: Sage Publications.
Chapter 12, “Regression and Correlation” (pp. 325-371) (previously read in Week 8)
Wagner, W. E. (2016). Using IBM® SPSS® statistics for research methods and social science statistics (6th ed.). Thousand Oaks, CA: Sage Publications.
Chapter 11, “Editing Output” (previously read in Week 2, 3, 4, 5. 6, 7, and 8)
Springdale SHopping Survey
Instructions The major shopping areas in the community of Springdale include Springdale Mall, West Mall, and the downtown ...
Springdale SHopping Survey
Instructions The major shopping areas in the community of Springdale include Springdale Mall, West Mall, and the downtown area on Main Street. A telephone survey has been conducted to identify strengths and weaknesses of these areas and to find out how they fit into the shopping activities of local residents. The 150 respondents were also asked to provide information about themselves and their shopping habits. The data are provided in the file SHOPPING. The variables in the survey can be found in the file CODING.In this exercise, some of the estimation techniques presented in the module will be applied to the Springfield Shopping survey results. You may assume that these respondents represent a simple random sample of all potential respondents within the community, and that the population is large enough that application of the finite population correction would not make an appreciable difference in the results.Managers associated with shopping areas like these find it useful to have point estimates regarding variables describing the characteristics and behaviors of their customers. In addition, it is helpful for them to have some idea as to the likely accuracy of these estimates. Therein lies the benefit of the techniques presented in this module and applied here.1.Item C in the description of the data collection instrument lists variables 7, 8, and 9, which represent the respondent’s general attitude toward each of the three shopping areas. Each of these variables has numerically equal distances between the possible responses, and for purposes of analysis they may be considered to be of the interval scale of measurement.1.Determine the point estimate, and then construct the 95% confidence interval for μ7 = the average attitude toward Springdale Mall.2.Repeat part (a) for μ8 and μ9, the average attitudes toward Downtown and West Mall, respectively.2.Given the breakdown of responses for variable 26 (sex of respondent), determine the point estimate, and then construct the 95% confidence interval for p26 = the population proportion of males.3.Given the breakdown of responses for variable 28 (marital status of respondent), determine the point estimate, and then construct the 95% confidence interval for p28 = the population proportion in the “single or other” category.4.Assume the managers have requested estimates of the mean attitudes towards each mall with a margin of error of 0.05 for each. If the managers want to have 95% confidence that the sample mean will fall within this margin of error, how large should the sample size be for each mall?RequirementsMust answer questions in detailMust include Excel Worksheet that proves work!
QM6640 TROY Medical Debt Critical Thinking Assessment Business Statistics Help
Read the case from the QM 6640 Medical Debt PDF document, and review the data from the QM 6640 Assessment Patient Data Exc ...
QM6640 TROY Medical Debt Critical Thinking Assessment Business Statistics Help
Read the case from the QM 6640 Medical Debt PDF document, and review the data from the QM 6640 Assessment Patient Data Excel file. Then, write a concise report answering questions 1-6 from the end of the case, using the data to assist in justifying your answers. Using past due amount as the dependent variable and all other variables as predictors (independent variables), run appropriate statistical analyses in Excel to mine the data. Insert tables and graphs from Excel in your report as appropriate. Label sections of your report to correspond to the questions. The completed report is the deliverable for this assignment.
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Most Popular Content
Probability Distribution (Excel)
1. Packages delivered from a local distribution center to their final destination vary between 30 and 240 minutes, and fol ...
Probability Distribution (Excel)
1. Packages delivered from a local distribution center to their final destination vary between 30 and 240 minutes, and follow a uniform distribution. a. What is the expected value of time it takes for parcels to arrive at their final destination.b. What is the probability that a package takes 60-120 minutes to arrive?c. What is the likelihood that a package takes more than 200 minutes?d. What is the probability that a package takes less than 100 minutes?2. A fleet of vehicles requiring regular maintenance typically cost $980 per month, with a standard deviation of $100, and follow a normal distribution. Two repairs completed recently, costing $1093 and 937, are being assessed to see if the costs are comparable to typical costs. Compute the z-value for each of these costs and comment on the value relative to typical costs.3. The income for mid-level executives is normally distributed, with a mean of $110,000 and standard deviation of $18,000. a. What is the probability of finding an executive whose income is greater than $125,000? b. What is the likelihood of finding an executive who income is less than $115,000? c. What is the probability of finding an executive who income is between $100,000 and $110,000?4. A retail store maintains inventory so that the likelihood of running out of stack (i.e. a stock out) is 5%. If the store anticipates demand for an item to be 10 units per month, with a standard deviation of 1, how many units should be kept in stock? Assume demand is normally distributed, and round your answer to the nearest whole number that ensures stock outs occur no more than 5% of the time.
Mode and Median probability, statistics homework help
1. Read the webpage, https://en.wikipedia.org/wiki/Binomial_distribution , down to the section, Mode and Me ...
Mode and Median probability, statistics homework help
1. Read the webpage, https://en.wikipedia.org/wiki/Binomial_distribution , down to the section, Mode and Median. Read thoroughly the example about the biased coin that comes up heads with probability of 0.3. This variable can be described as, X~Bi(n=6, p=0.3). Use this example to answer the following questions.a. What is the expected value of this variable? b. What is the expected number of heads if this coin is tossed 6 times? Same answer as in part 2.a. but in different words.c. What is the probability that the number of heads out of 6 tosses of this unfair coin is less than 2?d. What is the probability that the number of heads out of 6 tosses of this unfair coin is more than 2?e. What is the probability that the number of heads out of 6 tosses of this unfair coin is at least 2?f. What is the probability that the number of heads out of 6 tosses of this unfair coin is at most 2?2. Assume that 25% of all accounting audits identify an accounting error and that 8 audits were completed. The variable of interest is the number of audits that identify an accounting error out of the 8 audits. The distribution of this variable is described as X~Bi(n=8, p=0.25). Use this information to answer the questions below. Use this online calculator, if you want: http://stattrek.com/online-calculator/binomial.aspxa. What is the expected number of audits that will identify accounting errors?b. What is the probability of 2 or more accounting errors being identified in the 8 audits?c. What is the probability of 3 or more accounting errors being identified in the 8 audits?d. What is the probability of 4 or more accounting errors being identified in the 8 audits?e. What is the probability of 5 or more accounting errors being identified in the 8 audits?f. What is the probability of 6 or more accounting errors being identified in the 8 audits?g. What is the probability of 7 or more accounting errors being identified in the 8 audits?h. What is the probability of 8 or more accounting errors being identified in the 8 audits?
3 pages
Infinite Series
1) 1/2. The series converges and the sum is 1/2, the summation of this series starts at 1 and not 0. The answer remains th ...
Infinite Series
1) 1/2. The series converges and the sum is 1/2, the summation of this series starts at 1 and not 0. The answer remains the same when calculated ...
WU Quantitative Reasoning & Analysis Multiple Regression in Practice Discussion
For this Assignment, you will continue your practice as a critical consumer of research. You will critically evaluate a sc ...
WU Quantitative Reasoning & Analysis Multiple Regression in Practice Discussion
For this Assignment, you will continue your practice as a critical consumer of research. You will critically evaluate a scholarly article related to multiple regression. Search for a quantitative article that includes multiple regression testing.Write a 3- to 5-paragraphs critique of the article (2 to 3 pages). In your critique, include responses to the following:
Why did the authors use multiple regression?
Do you think it’s the most appropriate choice? Why or why not?
Did the authors display the data?
Do the results stand alone? Why or why not?
Did the authors report effect size? If yes, is this meaningful?
Use proper APA format, citations, and referencing.Required Readings
Frankfort-Nachmias, C., & Leon-Guerrero, A. (2018). Social statistics for a diverse society (8th ed.). Thousand Oaks, CA: Sage Publications.
Chapter 12, “Regression and Correlation” (pp. 325-371) (previously read in Week 8)
Wagner, W. E. (2016). Using IBM® SPSS® statistics for research methods and social science statistics (6th ed.). Thousand Oaks, CA: Sage Publications.
Chapter 11, “Editing Output” (previously read in Week 2, 3, 4, 5. 6, 7, and 8)
Springdale SHopping Survey
Instructions The major shopping areas in the community of Springdale include Springdale Mall, West Mall, and the downtown ...
Springdale SHopping Survey
Instructions The major shopping areas in the community of Springdale include Springdale Mall, West Mall, and the downtown area on Main Street. A telephone survey has been conducted to identify strengths and weaknesses of these areas and to find out how they fit into the shopping activities of local residents. The 150 respondents were also asked to provide information about themselves and their shopping habits. The data are provided in the file SHOPPING. The variables in the survey can be found in the file CODING.In this exercise, some of the estimation techniques presented in the module will be applied to the Springfield Shopping survey results. You may assume that these respondents represent a simple random sample of all potential respondents within the community, and that the population is large enough that application of the finite population correction would not make an appreciable difference in the results.Managers associated with shopping areas like these find it useful to have point estimates regarding variables describing the characteristics and behaviors of their customers. In addition, it is helpful for them to have some idea as to the likely accuracy of these estimates. Therein lies the benefit of the techniques presented in this module and applied here.1.Item C in the description of the data collection instrument lists variables 7, 8, and 9, which represent the respondent’s general attitude toward each of the three shopping areas. Each of these variables has numerically equal distances between the possible responses, and for purposes of analysis they may be considered to be of the interval scale of measurement.1.Determine the point estimate, and then construct the 95% confidence interval for μ7 = the average attitude toward Springdale Mall.2.Repeat part (a) for μ8 and μ9, the average attitudes toward Downtown and West Mall, respectively.2.Given the breakdown of responses for variable 26 (sex of respondent), determine the point estimate, and then construct the 95% confidence interval for p26 = the population proportion of males.3.Given the breakdown of responses for variable 28 (marital status of respondent), determine the point estimate, and then construct the 95% confidence interval for p28 = the population proportion in the “single or other” category.4.Assume the managers have requested estimates of the mean attitudes towards each mall with a margin of error of 0.05 for each. If the managers want to have 95% confidence that the sample mean will fall within this margin of error, how large should the sample size be for each mall?RequirementsMust answer questions in detailMust include Excel Worksheet that proves work!
QM6640 TROY Medical Debt Critical Thinking Assessment Business Statistics Help
Read the case from the QM 6640 Medical Debt PDF document, and review the data from the QM 6640 Assessment Patient Data Exc ...
QM6640 TROY Medical Debt Critical Thinking Assessment Business Statistics Help
Read the case from the QM 6640 Medical Debt PDF document, and review the data from the QM 6640 Assessment Patient Data Excel file. Then, write a concise report answering questions 1-6 from the end of the case, using the data to assist in justifying your answers. Using past due amount as the dependent variable and all other variables as predictors (independent variables), run appropriate statistical analyses in Excel to mine the data. Insert tables and graphs from Excel in your report as appropriate. Label sections of your report to correspond to the questions. The completed report is the deliverable for this assignment.
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