Question

Use the pulse rates in beats per minute​ (bpm) of a random sample of adult females listed in the data set available below to test the claim that the mean is less than 72 bpm. Use a 0.05 significance level.
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Answer 1

Answer:

Hi!

The mean of the 73.33 bpm for that data set.

The claim for this data set is false.

Explanation:

Data set by order: {38, 45, 46, 48, 55, 61, 65, 72, 87, 90, 91, 98, 100, 102, 102}

By definition of mean of a set is:

[tex] mean = \frac{x_1 + x_2 + x_3 + ... + x_n}{n}

In this case:

[tex] mean = \frac{38 +45 + 46 + 48 + 55 + 61 + 65 + 72 + 87 + 90 + 91 + 98 + 100 + 102 + 102}{15} = 73.33