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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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?
A consumer research group purchased identical items in eight drugstores. The mean cost for the purchased items was $113.49. The mode was $112. Using the empirical relationship among mean, median, and mode, estimate the median and comment on the skewness of the distribution.
A nationwide job recruiting firm wants to compare the annual incomes for childcare workers in Utah and Oregon. Due to recent trends in the childcare industry, the firm suspects that the mean annual income of childcare workers in Utah is less than the mean annual income of childcare workers in Oregon. To see if this is true, the firm selected a random sample of 20 childcare workers from Utah and an independent random sample of 20 childcare workers from Oregon and asked them to report their mean annual income. The data obtained were as follows. Annual income in dollars 27060 , 42320 , 36445 , 37895, 44564 , 35325 , 30313 , 28698, 33706 , 48365 , 26946 , 25063 , 28339 , 29265 , 40051 , 37026 , 40150 , 42753 , 27820, 39471 Utah 29769 , 48859 , 32480 , 36288,45102 , 46219 ,51098 , 45516 , 38834 , 44659 , 40755 , 38006 , 39947 , 29801 , 32200, 38731 , 41370 , 28059 , 33753 , 35271 Oregon Send data to calc... v Send data to Excel The population standard deviation for the annual incomes of…
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Roman, a health data officer, was tasked to create a report describing the height of all the children ages 12-15 years in a small town in Rome. He measured the height of all the 37 children (ages 12-15 years) in that small town. Describe the height using the following: Mean, Median and Mode Minimum and Maximum values Range Variance and Standard Deviation Coefficient of Variation 25th, 50th, and 75th Percentiles Interquartile Range Number of outliers
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