Ms. Lisa Monnin is the budget director for Nexus Media Inc. She would like to compare the daily travel expenses for the sales staff andthe audit staff. She collected the following sample information.Sales ($)Audit ($)129 137 142 122 137 145128 128 128 140 148 110The population standard deviations are unknown but assumed to be equal. At the 0.100 significance level, can she conclude that themean daily expenses are greater for the sales staff than the audit staff?pictureClick here for the Excel Data FileReject Ho if t >132Required:a. State the decision rule. (Round your answer to 3 decimal places.)Pooled varianceb. Compute the pooled estimate of the population variance. (Round your answer to 2 decimal places.)

The test is about the mean daily expenses are greater for sales staff than the audit staff.

Answered: Ms. Lisa Monnin is the budget director…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A psychologist has designed an index to measure the social perspectives of elementary school children. The index is based on ratings of a child’s responses to questions about a set of photographs showing different social situations. The following are the indices measured on a random sample of 16 children attending elementary school in a particular district. 48, 75, 69, 58, 60, 68, 59, 66, 71, 52, 49, 60, 54, 55, 70, 57 For the data the mean index is 60.69 and the standard deviation is 8.26. Perform a statistical test to determine if the population mean index is greater than 50. a) Name of hypothesis test: b) H0: c) HA: d) Test Statistic: e) Rejection region: f) Decision in the context of the problem:
What is the relationship between the mean of a population and the mean of its sampling distribution?
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Please answer a,b,c and d.... I don't want single answers..... Thank you
In a small company, the median salary is significantly lower than the mean salary. What does this indicate about the salary distribution in the company? What might be some possible reasons for this pattern?
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Please answers questions a through d. Thank you!

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