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Claim: The standard deviation of pulse rates of adult males is lessthan 12 bpm. For a random sample of 154 adultmales, the pulse rates have

Claim: The standard deviation of pulse rates of adult males is lessthan 12 bpm. For a random sample of 154 adultmales, the pulse rates have a standard deviation of 10.5 bpm. Find the value of the test statistic.

The value of the test statistic is

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