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A package delivery service claims that that it takes an average of 20 hours or less to send the package from Manila to Cebu. An independent consumer agency is doing a study to test the truth ofthis claim. Several complaints had led the agency to suspect that the delivery time is longer than 20 hours. In a sample of 2$ trials, the average time was 21 hours and std. deviation of 1.5 hours. Should you believe the claim? Use 0.01 level of significance

A package delivery service claims that that it takes an average of 20 hours or less to send the package from Manila to Cebu. An independent consumer agency is doing a study to test the truth ofthis claim. Several complaints had led the agency to suspect that the delivery time is longer than 20 hours. In a sample of 2$ trials, the average time was 21 hours and std. deviation of 1.5 hours. Should you believe the claim? Use 0.01 level of significance

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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Note: Follow the traditional steps in doing TEST OF HYPOTHESIS AND ANOVA. Do not use P value technique. 

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A package delivery service claims that that it takes an average of 20 hours or less to send the package from Manila to Cebu. An independent consumer agency is doing a study to test the truth ofthis claim. Several complaints had led the agency to suspect that the delivery time is longer than 20 hours. In a sample of 2$ trials, the average time was 21 hours and std. deviation of 1.5 hours. Should you believe the claim? Use 0.01 level of significance

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