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=0 (Round up to the nearest whole number as needed.)

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## Statistics Problem: Sample Size Determination

**Problem Statement:**

The pulse rates of 171 randomly selected adult males vary from a low of 42 beats per minute (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 (standard deviation).**

Determine the sample size \( n \).

*Round up to the nearest whole number as needed.*

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

### Progress

- **2 parts remaining:** Progress indicator shows completion of parts (indicated as a bar).

This exercise involves using statistical concepts such as the range rule of thumb and confidence intervals to determine a sample size needed for estimating population parameters accurately.
Transcribed Image Text:## Statistics Problem: Sample Size Determination **Problem Statement:** The pulse rates of 171 randomly selected adult males vary from a low of 42 beats per minute (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 (standard deviation).** Determine the sample size \( n \). *Round up to the nearest whole number as needed.* **Enter your answer in the answer box and then click Check Answer.** ### Progress - **2 parts remaining:** Progress indicator shows completion of parts (indicated as a bar). This exercise involves using statistical concepts such as the range rule of thumb and confidence intervals to determine a sample size needed for estimating population parameters accurately.
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