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.)
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
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