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Find the minimum sample size required to estimate the mean

The pulse rates of 143 randomly selected adult males vary from a low of 43 bpm to a high of 123 bpm. Find the minimum sample size required to estimate the mean pulse rate of adult males. Assume that we want 99% confidence that the sample mean is within 3 bpm of the population mean. Complete parts? (a) through? (c) below.

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Basic Statistics: Find the minimum sample size required to estimate the mean

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