Mathematics, 05.08.2019 18:30 tabbydory3366

Amajor tire manufacturer wishes to estimate the mean tread life in miles for one of its tires. it wishes to develop a confidence interval estimate that would have a maximum sampling error of 500 miles with 90 percent confidence. a pilot sample of n=50 tires showed a sample standard deviation equal to 4,000 miles. based on this information, what is the required sample size?

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Amajor tire manufacturer wishes to estimate the mean tread life in miles for one of its tires. it wi...