### Hypothesis testing, independent samples t-test for the difference between two population means.

Ms. Lisa Monnin is the budget director for the New Process Company. 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