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Claim: The mean pulse rate (in beats per minute) of adult males is equal to 69 bpm. For a random sample of 161 adult males, the mean pulse rate is...

Claim: The mean pulse rate​ (in beats per​ minute) of adult males is equal to 69 bpm. For a random sample of 161 adult​ males, the mean pulse rate is 67.7 bpm and the standard deviation is 11.1 bpm. Find the value of the test statistic.

The value of the test statistic is


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

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1 comment
  • z_Stat=-1.3/(11.1/12.6885)=-1.3/0.8748=-1.49
    • vectorialcalculus
    • Apr 05, 2018 at 6:26am

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