Question
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 0.050.05 level of significance. A sample of 6565 smokers has a mean pulse rate of 7878, and a sample of 7878 non-smokers has a mean pulse rate of 7575. The population standard deviation of the pulse rates is known to be 1010 for smokers and 88 for non-smokers. Let μ1μ1 be the true mean pulse rate for smokers and μ2μ2 be the true mean pulse rate for non-smokers.
Step 2 of 5 :
Compute the value of the test statistic. Round your answer to two decimal places.
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