Question

Claim: The standard deviation of pulse rates of adult males is less than 11 bpm. For...

Claim: The standard deviation of pulse rates of adult males is less than 11 bpm. For a random sample of 144 adult males, the pulse rates have a standard deviation of 9.6 bpm. Find the value of the statistic.

Homework Answers

Answer #1

Solution:

Given ,

n = 144

s = 9.6

Claim: < 11

Hypothesis can be written as

H0 :   11 vs H1 : < 11

The test statistic is

2 = (n - 1)s2/2

= (144 - 1) (9.6)2/(112)

= 108.9164

Value of the test statistic is 108.9164

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