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Question: Cooper Manufacturing, Inc., of Dallas, Texas, has a contract with the U.S. Air Force to produce a part for a new fighter plane being manufactured. The part is a bolt that has specifications requiring that the length be normally distributed with a mean of 3.05 inches and a standard deviation of 0.015 inch. As part of the company's quality-control efforts, each day Cooper's engineers select a random sample of 100 bolts produced that day and carefully measure the bolts to determine whether the production is within specifications. The following data were collected yesterday:
Based on these sample data, what should Cooper's engineers conclude about the production output if they test using an α = 0.01? Discuss.
test the hypothesis using the classical approach and the p-value approach.ho p 0.45 versus hi p lt 0.45n 150 x 62 a
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An insurance company serving the area is interested in the typical amount of a claim as a result of this storm. Seventyfive affected families are selected and their total claims are recorded. Describe the population and the sample in this problem.
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