(a) State the null hypothesis. (b) State the alternative hypothesis. (c) Calculate the test-statistic for this problem. (d) Calculate the range of the p-value for your teststatistic. (e) Interpret the p-value in terms of the problem. (f) Do you reject the null, or fail to reject? (g) State the conclusion in terms of the problem.

6. A medical researcher Wishes to see Whether the pulse rates of smokers are higher than the pulse rate for non- smokers. Random samples of 65 smokers and 74 non smokers are selected, and the pulse rate results are shown below. Test the researchers claim at o: = 0.01. Assume the d.f. = 137. Smokers Nonsmokers Sample Mean 90 88 Sample Standard Deviation 5.2 6.3 Sample Size 65 74