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The Trailways Bus Company claims that the mean waiting time for a bus during rush hour is le than 5 minutes. A random sample of 20 wait times has a mean of 3.7 minutes with a standard deviation of 2.1 minutes. At a = normally distributed. You must include all of the following: a)State the null and alternative hypotheses b) Identify the claim 0.01, test the bus company's claim. Assume the distribution is

The Trailways Bus Company claims that the mean waiting time for a bus during rush hour is le than 5 minutes. A random sample of 20 wait times has a mean of 3.7 minutes with a standard deviation of 2.1 minutes. At a = normally distributed. You must include all of the following: a)State the null and alternative hypotheses b) Identify the claim 0.01, test the bus company's claim. Assume the distribution is

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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The Trailways Bus Company claims that the mean waiting time for a bus during rush hour is less than 5 minutes. A random sample of 20 wait times has a mean of 3.7 minutes with a standard deviation of 2.1 minutes. At a = 0.01, test the bus company's claim. Assume the distribution is normally distributed. You must include all of the following: a)State the null and alternative hypotheses b) Identify the claim c) Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed d) Draw the graph and shade e) Determine whether to use a t-test or a z-test and perform the test f) Decide whether to reject or fail to reject the null hypothesis g) Interpret the decision concerning the claim
Transcribed Image Text:The Trailways Bus Company claims that the mean waiting time for a bus during rush hour is less than 5 minutes. A random sample of 20 wait times has a mean of 3.7 minutes with a standard deviation of 2.1 minutes. At a = 0.01, test the bus company's claim. Assume the distribution is normally distributed. You must include all of the following: a)State the null and alternative hypotheses b) Identify the claim c) Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed d) Draw the graph and shade e) Determine whether to use a t-test or a z-test and perform the test f) Decide whether to reject or fail to reject the null hypothesis g) Interpret the decision concerning the claim
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