Question: Answer.... 2 points A research worker wants to determine the average time it takes a mechanic to rotate the tires of a car, and she

Answer....

2 points A research worker wants to determine the average time it takes a mechanic to rotate the tires of a car, and she wants to be able to assert with 95% confidence that the mean of her sample is off by at most 0.3 minutes, If she can presume from past experience that the actual time follows normal distribution with a standard deviation of 1.5 minutes, how large the sample will she have to take? 0 9 0 97 0 96

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