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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 4.7 minutes. Construct a confidence interval for the population variance o² and the population standard deviation σ. 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.) OA. With 5% confidence, you can say that the population variance is between and OC. With 95% confidence, you can say that the population variance is between and OB. With 95% confidence, you can say that the population variance is greater than OA. With 5% confidence, you can say that the population standard deviation is greater than minutes O D. With 5% confidence, you can say that the population variance is less than 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.) OB. With 95% confidence, you can say that the population standard deviation is between 12

The waiting times (in minutes) of a random sample of 20 people at a bank have a sample standard deviation of 4.7 minutes. Construct a confidence interval for the population variance o² and the population standard deviation σ. 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.) OA. With 5% confidence, you can say that the population variance is between and OC. With 95% confidence, you can say that the population variance is between and OB. With 95% confidence, you can say that the population variance is greater than OA. With 5% confidence, you can say that the population standard deviation is greater than minutes O D. With 5% confidence, you can say that the population variance is less than 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.) OB. With 95% confidence, you can say that the population standard deviation is between 12

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 4.7 0² 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 of 0²2 (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.) OA. With 5% confidence, you can say that the population variance is between and OC. With 95% confidence, you can say that the population variance is between and 4 What is the confidence interval for the population standard deviation o? OA. With 5% confidence, you can say that the population standard deviation is greater than minutes (___) (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.) Q Search 4- & 4+ 7 ly VA B 90 8 N OB. With 95% confidence, you can say that the population variance is greater than C O D. With 5% confidence, you can say that the population variance is less than 9 OB. With 95% confidence, you can say that the population standard deviation is between LE Ø 00 0 of
Transcribed Image Text:The waiting times (in minutes) of a random sample of 20 people at a bank have a sample standard deviation of 4.7 0² 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 of 0²2 (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.) OA. With 5% confidence, you can say that the population variance is between and OC. With 95% confidence, you can say that the population variance is between and 4 What is the confidence interval for the population standard deviation o? OA. With 5% confidence, you can say that the population standard deviation is greater than minutes (___) (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.) Q Search 4- & 4+ 7 ly VA B 90 8 N OB. With 95% confidence, you can say that the population variance is greater than C O D. With 5% confidence, you can say that the population variance is less than 9 OB. With 95% confidence, you can say that the population standard deviation is between LE Ø 00 0 of
The waiting times (in minutes) of a random sample of 20 people at a bank have a sample standard deviation of 4.7 0² 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 of 0²2 (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.) OA. With 5% confidence, you can say that the population variance is between and OC. With 95% confidence, you can say that the population variance is between and 4 What is the confidence interval for the population standard deviation o? OA. With 5% confidence, you can say that the population standard deviation is greater than minutes (___) (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.) Q Search 4- & 4+ 7 ly VA B 90 8 N OB. With 95% confidence, you can say that the population variance is greater than C O D. With 5% confidence, you can say that the population variance is less than 9 OB. With 95% confidence, you can say that the population standard deviation is between LE Ø 00 0 of
Transcribed Image Text:The waiting times (in minutes) of a random sample of 20 people at a bank have a sample standard deviation of 4.7 0² 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 of 0²2 (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.) OA. With 5% confidence, you can say that the population variance is between and OC. With 95% confidence, you can say that the population variance is between and 4 What is the confidence interval for the population standard deviation o? OA. With 5% confidence, you can say that the population standard deviation is greater than minutes (___) (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.) Q Search 4- & 4+ 7 ly VA B 90 8 N OB. With 95% confidence, you can say that the population variance is greater than C O D. With 5% confidence, you can say that the population variance is less than 9 OB. With 95% confidence, you can say that the population standard deviation is between LE Ø 00 0 of
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