The pulse rates of 158 randomly selected adult males vary from a low of 44 bpm to a high of 120 bpm. Find the minimum sample size required to estimate the mean pulse rate of adult males. Assume that we want 90​% confidence that the sample mean is within 2 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.   n=245 ​ b. Assume that σ=10.5 ​bpm, based on the value s=10.5 bpm from the sample of 158 male pulse rates. n=   c.. Compare the results from parts​ (a) and​ (b). Which result is likely to be​ better?

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.