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In a random sample of 21 people, the mean commute time to work was 34.4 minutes and the standard deviation was 7.1 minutes. Assume the population is normally distributed and use a t-distribution to construct a 80% confidence interval for the population mean . What is the margin of error of u? Interpret the results. The confidence interval for the population mean u is D. (Round to one decimal place as needed.). The margin of error of u is (Round to one decimal place as needed.) Interpret the results. HIIB OA. With 80% confidence, it can be said that the population mean commute time is between the bounds of the confidence interval. OB. If a large sample of people are taken approximately 80% of them will have commute times between the bounds of the confidence interval. OC. With 80% confidence, it can be said that the commute time is between the bounds of the confidence interval. OD. It can be said that 80% of people have a commute time between the bounds of the confidence interval.

In a random sample of 21 people, the mean commute time to work was 34.4 minutes and the standard deviation was 7.1 minutes. Assume the population is normally distributed and use a t-distribution to construct a 80% confidence interval for the population mean . What is the margin of error of u? Interpret the results. The confidence interval for the population mean u is D. (Round to one decimal place as needed.). The margin of error of u is (Round to one decimal place as needed.) Interpret the results. HIIB OA. With 80% confidence, it can be said that the population mean commute time is between the bounds of the confidence interval. OB. If a large sample of people are taken approximately 80% of them will have commute times between the bounds of the confidence interval. OC. With 80% confidence, it can be said that the commute time is between the bounds of the confidence interval. OD. It can be said that 80% of people have a commute time between the bounds of the confidence interval.

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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K In a random sample of 21 people, the mean commute time to work was 34.4 minutes and the standard deviation was 7.1 minutes. Assume the population is normally distributed and use a t-distribution to construct a 80% confidence interval for the population mean µ. What is the margin of error of µ? Interpret the results. The confidence interval for the population mean u is (Round to one decimal place as needed.) The margin of error of u is. (Round to one decimal place as needed.) Interpret the results. # 3 OA. With 80% confidence, it can be said that the population mean commute time is between the bounds of the confidence interval. OB. If a large sample of people are taken approximately 80% of them will have commute times between the bounds of the confidence interval. OC. With 80% confidence, it can be said that the commute time is between the bounds of the confidence interval. OD. It can be said that 80% of people have a commute time between the bounds of the confidence interval. e d C с $ LA 4 r f % 5 V t 10 Oll 60 6 b Y 27 & ◆ n u h j EET CO * 8 E J 69 k O alt - O 1 Time Remaining: 00:52:08 Next P ctrl ? + 11 2 backs 1
Transcribed Image Text:K In a random sample of 21 people, the mean commute time to work was 34.4 minutes and the standard deviation was 7.1 minutes. Assume the population is normally distributed and use a t-distribution to construct a 80% confidence interval for the population mean µ. What is the margin of error of µ? Interpret the results. The confidence interval for the population mean u is (Round to one decimal place as needed.) The margin of error of u is. (Round to one decimal place as needed.) Interpret the results. # 3 OA. With 80% confidence, it can be said that the population mean commute time is between the bounds of the confidence interval. OB. If a large sample of people are taken approximately 80% of them will have commute times between the bounds of the confidence interval. OC. With 80% confidence, it can be said that the commute time is between the bounds of the confidence interval. OD. It can be said that 80% of people have a commute time between the bounds of the confidence interval. e d C с $ LA 4 r f % 5 V t 10 Oll 60 6 b Y 27 & ◆ n u h j EET CO * 8 E J 69 k O alt - O 1 Time Remaining: 00:52:08 Next P ctrl ? + 11 2 backs 1
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