45 people are randomly selected and the accuracy of their wristwatches is checked, with positive errors representing watches that are ahead of the correct time and negative errors representing watches that are behind the correct time. The 45 watches have an average error of 119 sec and the sample standard deviation of the watch errors is 165 sec. Use a 0.02 significance level to test the claim that the average watch reads the correct time (use a two-sided alternative). The test statistic is The P-Value is
45 people are randomly selected and the accuracy of their wristwatches is checked, with positive errors representing watches that are ahead of the correct time and negative errors representing watches that are behind the correct time. The 45 watches have an average error of 119 sec and the sample standard deviation of the watch errors is 165 sec. Use a 0.02 significance level to test the claim that the average watch reads the correct time (use a two-sided alternative). The test statistic is The P-Value is
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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45 people are randomly selected and the accuracy of their wristwatches is checked, with positive errors representing watches that are ahead of the correct time and negative errors representing watches that are behind the correct time. The 45 watches have an average error of 119 sec and the sample standard deviation of the watch errors is 165 sec. Use a 0.02 significance level to test the claim that the average watch reads the correct time (use a two-sided alternative).
The test statistic is
The P-Value is
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