Question 5 0.8 / 2 pts A medical researcher wants to compare the pulse rates of smokers and non-smokers. He believes that the pulse rate for smokers and nonsmokers is different and wants to test this claim at the 0.05 level of signicance. A sample of 35 smokers has a mean pulse rate of 87, and a sample of 45 nonsmokers has a mean pulse rate of 83. The population standard deviation of the pulse rates is known to be 7 for smokers and 7 for nonsmokers. Let ,ul be the true mean pulse rate for smokers and \"2 be the true mean pulse rate for nonsmokers. H0: m1 = m2 Ha; m1 >