Students randomly selected 40 people and measured the accuracy of their wristwatches, with positive errors representing watches that are ahead of the correct time and negative errors representing watches that are behind the correct time. The 40 values have a mean of 157.3 sec and a standard deviation 18510 sec. Use a 0.01 significance level to test the claim that the population of all watches has a mean equal to 0 sec. What can be concluded about the accuracy of people’s wristwatches? Hypotheses: P-value: ____________________ Conclusion on null hypothesis: Conclusion on claim and answer to the question:
Students randomly selected 40 people and measured the accuracy of their wristwatches, with positive errors representing watches that are ahead of the correct time and negative errors representing watches that are behind the correct time. The 40 values have a mean of 157.3 sec and a standard deviation 18510 sec. Use a 0.01 significance level to test the claim that the population of all watches has a mean equal to 0 sec. What can be concluded about the accuracy of people’s wristwatches? Hypotheses: P-value: ____________________ Conclusion on null hypothesis: Conclusion on claim and answer to the question:
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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Students randomly selected 40 people and measured the accuracy of their wristwatches, with positive errors representing watches that are ahead of the correct time and negative errors representing watches that are behind the correct time. The 40 values have a mean of 157.3 sec and a standard deviation 18510 sec. Use a 0.01 significance level to test the claim that the population of all watches has a mean equal to 0 sec. What can be concluded about the accuracy of people’s wristwatches?
Hypotheses:
P-value: ____________________
Conclusion on null hypothesis:
Conclusion on claim and answer to the question:
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