Question

​Claim: 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 68.7 bpm and the standard deviation is 11.3 bpm. Find the value of the test statistic.

Answer 1

SOLUTION:

From given data,

​Claim: 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 68.7 bpm and the standard deviation is 11.3 bpm. Find the value of the test statistic.

= 69

n = 166

mean = = 68.7

standard deviation = s = 11.3

the test statistic

t = ( - ) / (s/sqrt(n))

t = (68.7  - 69) / (11.3 /sqrt(166 ))

t = -0.3 / 0.87705009

t = - 0.3420557

the value of the test statistic is = t = - 0.342

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