The mean pulse rate (in beats per minute) of adult males is equal to 69 bpm. for a random sample of 166 adult males, the mean pulse rate is 68.6 bpm and the standard deviation is 10.6 bpm. find the value of the test statistic.

Explanation:

Given : The mean pulse rate (in beats per minute) of adult males

For sample : Size =

Mean :

Standard deviation :

We assume that its a normal distribution , since the sample size is large (>30) then test applied here is z-test .

The formula to calculate the z-statistic is given by :-

Hence, the value of the test statistic =

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