Ms. Lisa Monnin is the budget director for Nexus Media Incorporated She would like to compare the daily travel expenses for the sales staff and the audit staff. She collected the following sample information.
Sales ($) 131 133 148 126 138 140
Audit ($) 124 125 126 140 126 125 139
Verify the assumption that the variances are equal. Use the 0.10 significance level. At the 0.10 significance level, can Lisa conclude that the mean daily expenses are greater for the sales staff than the audit staff?
Required:
Verify the assumption that the variances are equal. Use the 0.10 significance level.
Note: Round your answer to 4 decimal places.
State the decision rule.
Note: Round your answer to 3 decimal places.
Compute the pooled estimate of the population variance.
Note: Round your answer to 2 decimal places.
Compute the test statistic.
Note: Round your answer to 3 decimal places.
State your decision about the null hypothesis.
Estimate the p-value.
