The pulse rates of 161 randomly selected adult males vary from a low of 37 bpm to a high of 97 bpm. Find the minimum sample size required to estimate the mean pulse rate of adult males. Assume that we want 95​% confidence that the sample mean is within 4 bpm of the population mean. Complete parts​ (a) through​ (c) below. a. Find the sample size using the range rule of thumb to estimate σ.Assume that σ=13.7 bpm, based on the value s=13.7 bpm from the sample of 161 male pulse rates. c. Compare the results from parts​ (a) and​ (b). Which result is likely to be​ better?

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The pulse rates of 161 randomly selected adult males vary from a low of
37 bpm to a high of 97 bpm. Find the minimum sample size required to estimate the mean pulse rate of adult males. Assume that we want 95​%
confidence that the sample mean is within 4 bpm of the population mean. Complete parts​ (a) through​ (c) below.
a. Find the sample size using the range rule of thumb to estimate σ.Assume that σ=13.7 bpm, based on the value s=13.7 bpm from the sample of 161
male pulse rates.
c. Compare the results from parts​ (a) and​ (b). Which result is likely to be​ better?
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