A sample of 1200 computer chips revealed that 23% of the chips
fail in the first 1000 hours of their use. The company's
promotional literature states that 25% 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 less than
the stated percentage. Is there enough evidence at the 0.05 level
to support the manager's claim? Step 2 of 7: Find the value of the
test statistic. Round your answer to two decimal places.
A sample of 1200 computer chips revealed that 23% of the chips fail in the first 1000 hours of their use. The company's
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A sample of 1200 computer chips revealed that 23% of the chips fail in the first 1000 hours of their use. The company's
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