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 0.10 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.)

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 0.10 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.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 30PPS

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