A sample of 1100 computer chips revealed that 67 % of the chips fail in the first 1000 hours of their use. The company's promotional literature states that 70% of thechips fail in the first 1000 hours of their use. The quality control manager wants to test the claim that the actual percentage that fail is different from the statedpercentage. Make the decision to reject or fail to reject the null hypothesis at the 0.10 level.AnswerO Reject Null Hypothesis○ Fail to Reject Null HypothesisTablesKeypadKeyboard Shortcuts

The objective of this question is to test the null hypothesis that the actual failure rate of the…

Answered: A sample of 1100 computer chips…

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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A hypothesis test result is considered to be statistically significant only when?
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Q
In 2018, a study was conducted that stated 22.6% of residents in Kern County live below the poverty line. Suppose you were hired to determine if that percentage has changed since the study was conducted. You randomly sample 200 residents from Kern County and find that 35 of them fall below the poverty line. Carry out the appropriate hypothesis test at the a = 0.05 level of significance to determine if the true proportion of Kern County residents that live below the poverty line is lower than what it was in 2018.

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