In a random sample of 26 people, the mean commute time to work was 34.1 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 p? Interpret the results. The confidence interval for the population mean u is ( A 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. O A. With 80% confidence, it can be said that the population mean commute time is 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. If a large sample of people are taken approximately 80% of them will have commute times between the bounds of the confidence interval.

In a random sample of 26 people, the mean commute time to work was 34.1 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 p? Interpret the results. The confidence interval for the population mean u is ( A 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. O A. With 80% confidence, it can be said that the population mean commute time is 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. If a large sample of people are taken approximately 80% of them will have commute times between the bounds of the confidence interval.

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Description: In a random sample of 26 people, the mean commute time to work was 34. 1 minutes and the standard deviation was 7.1 minutes. Assume the population isnormally distributed and use at-distribution to construct a 80% confidence interval for the populati

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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