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In a random sample of 24 people, the mean commute time to work was 31.2 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 μ is. (Round to one decimal place as needed.) Interpret the results. OA. If a large sample of people are taken approximately 80% of them will have commute times between the bounds of the confidence interval. OB. With 80% confidence, it can be said that the commute time is between the bounds of the confidence interval. OC. It can be said that 80% of people have a commute time between the bounds of the confidence interval. O D. With 80% confidence, it can be said that the population mean commute time is between the bounds of the confidence interval.

In a random sample of 24 people, the mean commute time to work was 31.2 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 μ is. (Round to one decimal place as needed.) Interpret the results. OA. If a large sample of people are taken approximately 80% of them will have commute times between the bounds of the confidence interval. OB. With 80% confidence, it can be said that the commute time is between the bounds of the confidence interval. OC. It can be said that 80% of people have a commute time between the bounds of the confidence interval. O D. With 80% confidence, it can be said that the population mean commute time is between the bounds of the confidence interval.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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In a random sample of 24 people, the mean commute time to work was 31.2 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 u. 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 μ is (Round to one decimal place as needed.) Interpret the results. C... OA. If a large sample of people are taken approximately 80% of them will have commute times between the bounds of the confidence interval. O B. With 80% confidence, it can be said that the commute time is between the bounds of the confidence interval. OC. It can be said that 80% of people have a commute time between the bounds of the confidence interval. O D. With 80% confidence, it can be said that the population mean commute time is between the bounds of the confidence interval.
Transcribed Image Text:In a random sample of 24 people, the mean commute time to work was 31.2 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 u. 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 μ is (Round to one decimal place as needed.) Interpret the results. C... OA. If a large sample of people are taken approximately 80% of them will have commute times between the bounds of the confidence interval. O B. With 80% confidence, it can be said that the commute time is between the bounds of the confidence interval. OC. It can be said that 80% of people have a commute time between the bounds of the confidence interval. O D. With 80% confidence, it can be said that the population mean commute time is between the bounds of the confidence interval.
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