QIn making the decision to return to school for an MBA, prospective students desire to know thetime it will take to recoup their investment (forgone wages plus tuition and other direct costs).The time it will take to recoup their investment is normally distributed. You are in charge ofestimating this time for a brochure advertising an MBA program at UCLA. You randomly sample20 past UCLA MBA students and find that the sample average is 3.61 years with a standarddeviation of 0.63 years. A 90% confidence interval for the mean time it takes UCLA MBAstudents to recoup their educational investment is(3.32, 3.90).(3.25, 3.97).(3.42, 3.80).not determinable with the information given.(3.37, 3.85).OMAJBMacBook ProWDPकिzoom

Answer:From the given data,Sample size (n) = 20Sample average = 3.61 yearsStandard deviation (s) =…

Answered: In making the decision to return to…

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 making the decision to return to school for an MBA, prospective students desire to know the time it will take to recoup their investment (forgone wages plus tuition and other direct costs). The time it will take to recoup their investment is normally distributed. You are in charge of estimating this time for a brochure advertising an MBA program at UCLA. You randomly sample 20 past UCLA MBA students and find that the sample average is 3.61 years with a standard deviation of 0.63 years. An 80% confidence interval for the mean time it takes UCLA MBA students to recoup their educational investment is Q (3.25, 3.97). (3.42, 3.80). (3.32, 3.90). (3.37, 3.85). not determinable with the information given. JA W 国 P plakatdalalal 7
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As a sales analyst for the shoe retailer Foot Locker, one of your responsibilities is measuring store productivity and then reporting your conclusion back to management. Foot Locker uses sales per square foot as a measure of store productivity. While preparing your report for the second quarter results (Q2), you are able to determine that annual sales for last year ran at a rate of $406 per square foot. Therefore, $406 per square foot will be your sales estimate for the population of all Foot Locker stores during Q2. For your Q2 Sales Report, you decide to take a random sample of 64 stores. Using annual data from last year, you are able to determine that the standard deviation for sales per square foot for all 3,400 stores was $80. Therefore $80 per square foot will be your population standard deviation when compiling your Q2 report. You anticipate that management would be comfortable with a probability of 0.500 when offering your estimate of the sample mean. Using σ = $80…
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