In a random sample of 22 people, the mean commute time to work was 34.5 minutes and the standard deviation was 7.2 minutes. Assume the population is normally distributed and use a t-distribution to construct a 99% confidence interval for the population mean u. What is the margin of error of u? Interpret the results. The confidence interval for the population meanµ is D (Round to one decimal place as needed.)
In a random sample of 22 people, the mean commute time to work was 34.5 minutes and the standard deviation was 7.2 minutes. Assume the population is normally distributed and use a t-distribution to construct a 99% confidence interval for the population mean u. What is the margin of error of u? Interpret the results. The confidence interval for the population meanµ is D (Round to one decimal place as needed.)
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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![In a random sample of 22 people, the mean commute time to work was 34.5 minutes, and the standard deviation was 7.2 minutes. Assume the population is normally distributed and use a t-distribution to construct a 99% 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 μ is ( __ , __ ).
(Round to one decimal place as needed.)
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Transcribed Image Text:In a random sample of 22 people, the mean commute time to work was 34.5 minutes, and the standard deviation was 7.2 minutes. Assume the population is normally distributed and use a t-distribution to construct a 99% 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 μ is ( __ , __ ).
(Round to one decimal place as needed.)
---
Below the problem, there is an interface to enter answers:
- An "Enter your answer in the edit fields and then click Check Answer" instruction.
- A button labeled "Check Answer."
- A progress bar indicating "2 parts remaining."
- Navigation arrows to move between questions.
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