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Compute the pooled estimate of the population variance

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Reference no: EM131140003

Question: Ms. 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. 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 she conclude that the mean daily expenses are greater for the sales staff than the audit staff? 

1. State the decision rule. Reject H0 if t >_______??

2. Compute the pooled estimate of the population variance. Pooled variance is 204.075.

3. Compute the test statistic. Value of the test statistic is.... ?? .....State the decision rule and give value of test statistic. 

Reference no: EM131140003

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