Question: A computer company wants to estimate how long it will take a beginner to become proficient at assembly of pos. Past experience indicates the time

A computer company wants to estimate how long it
A computer company wants to estimate how long it will take a beginner to become proficient at assembly of pos. Past experience indicates the time required for beginners to become proficient has an approximate normal distribution with a standard deviation of 19 minutes. Find the sample size necessary to become proficient to within 3 minutes with 99% confidence A. 266 B. 16.3 C. none of the answers D. 218 E. 17

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