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A medical researcher wants to compare the pulse rates of smokers and non-smokers. He believes that...

A medical researcher wants to compare the pulse rates of smokers and non-smokers. He believes that the pulse rate for smokers and non-smokers is different and wants to test this claim at the 0.01 level of significance. A sample of 74 smokers has a mean pulse rate of 87, and a sample of 76 non-smokers has a mean pulse rate of 84. The population standard deviation of the pulse rates is known to be 8 for smokers and 7 for non-smokers. Let μ1 be the true mean pulse rate for smokers and μ2 be the true mean pulse rate for non-smokers.

  Compute the value of the test statistic. Round your answer to two decimal places.

z value?

t value?

p value?

reject or fail to reject?

math   Statistics-And-Probability   
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