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The waiting times (in minutes) of a random sample of 20 people at a bank have a sample standard deviation of 4.4 minutes. Construct a confidence interval for the population variance of and the population standard deviation o. Use a 95% level of confidence. Assume the sample is from a normally distributed population. What is the confidence interval for the population variance o²? (Round to one decimal place as needed.) Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to one decimal place as needed.) O A. With 95% confidence, you can say that the population variance is greater than O C. With 95% confidence, you can say that the population variance is between and What is the confidence interval for the population standard deviation ? OB. With 5% confidence, you can say that the population variance is between and OD. With 5% confidence, you can say that the population variance is less than

The waiting times (in minutes) of a random sample of 20 people at a bank have a sample standard deviation of 4.4 minutes. Construct a confidence interval for the population variance of and the population standard deviation o. Use a 95% level of confidence. Assume the sample is from a normally distributed population. What is the confidence interval for the population variance o²? (Round to one decimal place as needed.) Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to one decimal place as needed.) O A. With 95% confidence, you can say that the population variance is greater than O C. With 95% confidence, you can say that the population variance is between and What is the confidence interval for the population standard deviation ? OB. With 5% confidence, you can say that the population variance is between and OD. With 5% confidence, you can say that the population variance is less than

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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The waiting times (in minutes) of a random sample of 20 people at a bank have a sample standard deviation of 4.4 minutes. Construct a confidence interval for the population variance o² and the population standard deviation o. Use a 95% level of confidence. Assume the sample is from a normally distributed population. OC. With 95% confidence, you can say that the population variance is between and O A. With 5% confidence, you can say that the population standard deviation is greater than minutes. COX What is the confidence interval for the population standard deviation o? (Round to one decimal place as needed.) Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to one decimal place as needed.) OC. With 5% confidence, you can say that the population standard deviation is between minutes and minutes. O D. With 5% confidence, you can say that the population variance is less than OB. With 95% confidence, you can say that the population standard deviation is less than minutes. OD. With 95% confidence, you can say that the population standard deviation is between and minutes.
Transcribed Image Text:The waiting times (in minutes) of a random sample of 20 people at a bank have a sample standard deviation of 4.4 minutes. Construct a confidence interval for the population variance o² and the population standard deviation o. Use a 95% level of confidence. Assume the sample is from a normally distributed population. OC. With 95% confidence, you can say that the population variance is between and O A. With 5% confidence, you can say that the population standard deviation is greater than minutes. COX What is the confidence interval for the population standard deviation o? (Round to one decimal place as needed.) Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to one decimal place as needed.) OC. With 5% confidence, you can say that the population standard deviation is between minutes and minutes. O D. With 5% confidence, you can say that the population variance is less than OB. With 95% confidence, you can say that the population standard deviation is less than minutes. OD. With 95% confidence, you can say that the population standard deviation is between and minutes.
The waiting times (in minutes) of a random sample of 20 people at a bank have a sample standard deviation of 4.4 minutes. Construct a confidence interval for the population variance of and the population standard deviation o. Use a 95% level of confidence. Assume the sample is from a normally distributed population. What is the confidence interval for the population variance o²? (Round to one decimal place as needed.) Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to one decimal place as needed.) O A. With 95% confidence, you can say that the population variance is greater than OC. With 95% confidence, you can say that the population variance is between and What is the confidence interval for the population standard deviation o? OB. With 5% confidence, you can say that the population variance is between and O D. With 5% confidence, you can say that the population variance is less than
Transcribed Image Text:The waiting times (in minutes) of a random sample of 20 people at a bank have a sample standard deviation of 4.4 minutes. Construct a confidence interval for the population variance of and the population standard deviation o. Use a 95% level of confidence. Assume the sample is from a normally distributed population. What is the confidence interval for the population variance o²? (Round to one decimal place as needed.) Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to one decimal place as needed.) O A. With 95% confidence, you can say that the population variance is greater than OC. With 95% confidence, you can say that the population variance is between and What is the confidence interval for the population standard deviation o? OB. With 5% confidence, you can say that the population variance is between and O D. With 5% confidence, you can say that the population variance is less than
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