12.5 6 Sales ($) 129 Audit ($) 128 137 142 122 137 145 128 128 140 128 100 120 points eBook Print References 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? Click here for the Excel Data File Required: a. Verify the assumption that the variances are equal. Use the 0.10 significance level. Note: Round your answer to 4 decimal places. F-statistic b. State the decision rule. Note: Round your answer to 3 decimal places. Reject Ho if t> c. Compute the pooled estimate of the population variance. Note: Round your answer to 2 decimal places. Pooled variance d. Compute the test statistic. Note: Round your answer to 3 decimal places.