Question

In: Statistics and Probability

A sample of 900 computer chips revealed that 59% of the chips fail in the first...

A sample of 900 computer chips revealed that 59% of the chips fail in the first 1000 hours of their use. The company's promotional literature states that 62% 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 0.10 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.

Solutions

Expert Solution

2) Test statistic

                        

                         = -1.85 (ans)

                                                                                                                                                                                                       

orchestra answered 2 years ago
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