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

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A computer company wants to estimate how long it will take a beginner to become proficient at assembly of pcs. Past experience indicates the time required for beginners to become proficient has an approximate normal distribution with a o of 22 minutes. Find the sample size necessary to become proficient to within 3 minutes with 99% confidence. O 357 356 O 361 O 19

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