Question

​Claim: The mean pulse rate​ (in beats per​ minute) of adult males is equal to 69 bpm. For a random sample of 136 adult​ males, the mean pulse rate is

70.4 bpm and the standard deviation is 10.6 bpm. Find the value of the test statistic.

The value of the test statistic is ___ .

​(Round to two decimal places as​ needed.)

Answer 1

Solution :

= 69

= 70.4

= 10.6

n = 136

Test statistic = z

= ( - ) / / n

= (70.4 - 69) / 10.6 / 136 = 1.54

The value of the test statistic is 1.54