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?
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?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
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The pulse rates of
sample size required to estimate the mean pulse rate of adult males. Assume that we want
158
randomly selected adult males vary from a low of
44
bpm to a high of
120
bpm. Find the minimum 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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