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A sample of 13001300 computer chips revealed that 28%28% of the chips do not fail in the first 10001000 hours of their use. The company's
A sample of 13001300 computer chips revealed that 28%28% of the chips do not fail in the first 10001000 hours of their use. The company's promotional literature states that 30%30% of the chips do not fail in the first 10001000 hours of their use. The quality control manager wants to test the claim that the actual percentage that do not fail is different from the stated percentage. Is there enough evidence at the 0.020.02 level to support the manager's claim?
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