K The pulse rates of 143 randomly selected adult males vary from a low of 43 bpm to a high of 103 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 3 bpm of the population mean. Complete parts (a) through (c) below. CEED a. Find the sample size using the range rule of thumb to estimate o n= (Round up to the nearest whole number as needed.)

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