The pulse rates of 171 randomly selected adult males vary from a low of 42 bpm to a high of 106 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 4 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= 107 (Round up to the nearest whole number as needed.) b. Assume that a = 11.7 bpm, based on the value s = 11.7 bpm from the sample of 171 male pulse rates. n=0 (Round up to the nearest whole number as needed.)

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# Sample Size Determination for Pulse Rates

The pulse rates of 171 randomly selected adult males vary from a low of 42 bpm to a high of 106 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 4 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.

- \( n = 107 \) 
- (Round up to the nearest whole number as needed.)

### b. Assume that \( σ = 11.7 \) bpm, based on the value \( s = 11.7 \) bpm from the sample of 171 male pulse rates.

- \( n = \) [Enter value]
- (Round up to the nearest whole number as needed.)

### Instructions

Enter your answer in the answer box and then click Check Answer. 

Note: The "Check Answer" button is used to verify the response, and there is one part remaining to complete the activity.
Transcribed Image Text:# Sample Size Determination for Pulse Rates The pulse rates of 171 randomly selected adult males vary from a low of 42 bpm to a high of 106 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 4 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. - \( n = 107 \) - (Round up to the nearest whole number as needed.) ### b. Assume that \( σ = 11.7 \) bpm, based on the value \( s = 11.7 \) bpm from the sample of 171 male pulse rates. - \( n = \) [Enter value] - (Round up to the nearest whole number as needed.) ### Instructions Enter your answer in the answer box and then click Check Answer. Note: The "Check Answer" button is used to verify the response, and there is one part remaining to complete the activity.
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