In a random sample of five people, the mean driving distance to work was 25.4 miles and the standard deviation was 6.3 miles. Assume the population is normally distributed and use the t-distribution to find the margin of error and construct a 99% confidence interval for the population mean μ. Interpret the results.
In a random sample of five people, the mean driving distance to work was 25.4 miles and the standard deviation was 6.3 miles. Assume the population is normally distributed and use the t-distribution to find the margin of error and construct a 99% confidence interval for the population mean μ. Interpret the results.
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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Question
In a random sample of
normally distributed and use the t-distribution to find the margin of error and construct a
five
people, the mean driving distance to work was
25.4
miles and the standard deviation was
6.3
miles. Assume the population is 99%
confidence interval for the population mean
μ.
Interpret the results.Identify the margin of error.
enter your response here
▼
square miles
miles per hour
miles
(Round to one decimal place as needed.)
Construct a
99%
confidence interval for the population mean.,
(Round to one decimal place as needed.)
Interpret the results. Select the correct choice below and fill in the answer box to complete your choice.
(Type an integer or a decimal. Do not round.)
With
enter your response here%
confidence, it can be said that most driving distances to work (in miles) in the population are between the interval's endpoints.It can be said that
enter your response here%
of the population has a driving distance to work (in miles) that is between the interval's endpoints.With
enter your response here%
confidence, it can be said that the population means driving distance to work (in miles) is between the interval's endpoints.enter your response here%
of all random samples of
five
people from the population will have a mean driving distance to work (in miles) that is between the interval's endpoints.Expert Solution
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