A medical researcher wants to compare the pulse rates of smokersand non-smokers. He believes that the pulse rate for smokers andnon-smokers is different and wants to test this claim at the 0.02level of significance. A sample of 46 smokers has a mean pulse rateof 75, and a sample of 47 non-smokers has a mean pulse rate of 73.The population standard deviation of the pulse rates is known to be7 for smokers and 10 for non-smokers. Let ?1 be the true mean pulserate for smokers and ?2 be the true mean pulse rate fornon-smokers. Step 1 of 4: State the null and alternative hypothesesfor the test. Step 2 of 4: Compute the value of the test statistic.Round your answer to two decimal places. Step 3 of 4: Determine thedecision rule for rejecting the null hypothesis H0. Round thenumerical portion of your answer to two decimal places. Step 4 of4: Make the decision for the hypothesis test.
