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....

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At the 0.025 significance level, can she conclude that the mean daily expenses are greater for the sales staff than the audit staff?

A. State the decision rule. (Round your answer to 3 decimal places.)

B. Compute the pooled estimate of the population variance. (Round your answer to 2 decimal places.)

C. Compute the test statistic. (Round your answer to 3 decimal places.)

D. State your decision about the null hypothesis.

• Do not reject H0: μs ≤ μa
• Reject H0: μs ≤ μa

E. Estimate the p-value.