Question

Asked Jan 19, 2020

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Pulse Rates Listed below are pulse rates (beats per minute) from samples of adult males and females (from Data Set 1 “Body Data” in Appendix B). Does there appear to be a difference?

Step 1

**Measures of variation:**

Consider the measures of variations (coefficient variation, range, variance, and standard deviation) to check whether there appear to be a difference or not.

**Mean for the male pulse rates:**

Mean for the pulse rates of adult males is calculated as follows:

Step 2

**Variance for the male pulse rates:**

The variance is obtained as **127.12**, from the below calculation:

Step 3

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