In 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. To estimate the mean number of years required to recoup an investmentin a UCLA MBA to within 2 months (0.17 years) with 90% confidence, the sample size shouldbe approximately38.O 75.53.23.none of the above.OE0CAn AMacBook ProWPzoom

Solution-:Given: We want to find the sample size (n)=?

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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A survey was conducted two years ago asking college students their top motivations for using a credit card. You think this distribution has changed. You randomly select 425 college students and ask each one what the top motivation is for using a credit card. Can you conclude that there has been a change in the distribution? Use a = 0.025. Complete parts (a) through (d). Response Old Survey % 29% New Survey Frequency, f Rewards 110 Low rates Cash back Discounts 23% 96 21% 109 7% 46 Other 20% 64 O B. The distribution of motivations is 110 rewards, 96 low rate, 109 cash back, 46 discounts, and 64 other. O C. The distribution of motivations is 29% rewards, 23% low rate, 21% cash back, 7% discounts, and 20% other. Which hypothesis is the claim? o Ho (b) Determine the critical value, Yo, and the rejection region. X = 11.143 (Round to three decimal places as needed.) Choose the correct rejection region below. Oc. X
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You collect data of average annual returns for Amazon Stock and Microsoft Stock and make the following table: (This data can be copied into Excel.) You use this data to answer the research question: are true population Amazon Returns greater than true population Microsoft Returns? What is your point estimate of the difference in Amazon Returns and Microsoft Returns? Enter your answer as a positive number. Round your answer to four decimal places.
I can't seem to figure this question out and need help please, thanks so much.
your car is more crowded than you think. table 5.8 reports results from a 1969 personal transportation survey on "home-to-work" trips in metropolitan areas. The survey stated that the average car occupancy was 1.4 people. check that calculation.

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