# A random sample of 15 observations from the first population revealed a sample mean of 350

#1: The null and alternate hypotheses are: Ho: ? 1= ? 2 H1: ?1? ? 2 A random sample of 15 observations from the first population revealed a sample mean of 350 and a sample standard deviation of 12. A random sample of 17 observations from the second population revealed a sample mean of 342 and a sample standard deviation of 15. At the .10 significance level, is there a difference in the population means? NOTE: Use the five-step hypothesis testing procedure for the following exercises: #2: Ms. Lisa Monnin is the budget director for Nexus Media, Inc. She would like to compare the daily travel expenses for the sales staff and the audit staff. She collected the following sample information. Sales ($): 131 135 146 165 136 142 Audit ($): 130 102 129 143 149 120 139 At the .10 significance level, can she conclude that the mean daily expenses are greater for the sales staff than the audit staff? What is the p-value? #3: The management of Discount Furniture, a chain of disco