The pulse rates of 169 randomly selected adult males vary from a low of 40 bpm to a high of 104 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 a. (Round up to the nearest whole number as needed.)

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The pulse rates of 169 randomly selected adult males vary from a low of 40 bpm to a high of 104 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 o.
n=
(Round up to the nearest whole number as needed.)
Transcribed Image Text:The pulse rates of 169 randomly selected adult males vary from a low of 40 bpm to a high of 104 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 o. n= (Round up to the nearest whole number as needed.)
a. Find the sample size using the range rule of thumb to estimate o
n3=
(Type a whole number.)
b. Assume thato = 11.6 bpm, based on the value s = 11.6 bpm from the sample of 155 male pulse rates.
(Type a whole number.)
c. Compare the results from parts (a) and (b). Which result is likely to be better?
The result from part (a) is
the result from part (b). The result from
is likely
to be better because
larger than
smaller than
Enter your answer in eact
the same size as
Transcribed Image Text:a. Find the sample size using the range rule of thumb to estimate o n3= (Type a whole number.) b. Assume thato = 11.6 bpm, based on the value s = 11.6 bpm from the sample of 155 male pulse rates. (Type a whole number.) c. Compare the results from parts (a) and (b). Which result is likely to be better? The result from part (a) is the result from part (b). The result from is likely to be better because larger than smaller than Enter your answer in eact the same size as
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