Question: 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 Staff ($) 191 135 146 165 136 142
Audit Staff ($) 130 102 129 143 149 120 139

At the 0.10 significance level, can she conclude that the mean daily expenses are greater for the sales staff than for the audit staff?