The pulse rates of 141 randomly selected adult males vary from a low of 43 bpm to a high of 115 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 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 o. n= 538 (Round up to the nearest whole number as needed.) b. Assume that o = 12.2 bpm, based on the value s = 12.2 bpm from the sample of 141 male pulse rates. n= (Round up to the nearest whole number as needed.)
The pulse rates of 141 randomly selected adult males vary from a low of 43 bpm to a high of 115 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 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 o. n= 538 (Round up to the nearest whole number as needed.) b. Assume that o = 12.2 bpm, based on the value s = 12.2 bpm from the sample of 141 male pulse rates. n= (Round up to the nearest whole number as needed.)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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c. Compare the results from parts (a) and (b). Which result is likely to be better? (select one or the other for the answer.)
The result from part (a) is ( SMALLER THAN, LARGER THAN, OR THE SAME SIZE IS ) the result from part (b). The result from ( PART(A) or PART(B) ) is likely to be better because ( IT IS SMALLER. IT IS USES A BETTER ESTIMATE OF σ. OR IT IS LARGER. )
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