A sample of 900 computer chips revealed that 63 % of the chips fail in the first 1000 hours of their use. The company's promotional literature states that 60 % of the chips fail in the first 1000 hours of their use. The quality control manager wants to test the claim that the actual percentage chat fail is different from the stated percentage. Is there enough evidence at the 0.05 level to support the manager's claim?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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A sample of 900 computer chips revealed that 63 % of the chips fail in the first 1000 hours of their use. The company's promotional literature
states that 60 % of the chips 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 stated percentage. Is there enough evidence at the 0.05 level to support the manager's claim?
Transcribed Image Text:A sample of 900 computer chips revealed that 63 % of the chips fail in the first 1000 hours of their use. The company's promotional literature states that 60 % of the chips 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 stated percentage. Is there enough evidence at the 0.05 level to support the manager's claim?
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