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Mathematics, 12.03.2020 06:16 zykia1002
A tire manufacturer would like to estimate the average tire life of its new all-season light truck tire in terms of how many miles it lasts. Determine the sample size needed to construct a 98% confidence interval with a margin of error equal to 3 comma 000 miles. Assume the standard deviation for the tire life of this particular brand is 9 comma 000 miles. The sample size needed is nothing. (Round up to the nearest integer.)
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A tire manufacturer would like to estimate the average tire life of its new all-season light truck t...
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