Mkt Problems Module 4

Richard Joyal Module 3 Homework Chapter 4 Problems Applied determination methids 4-13: A:) [pic] B) Predict the final average of a schoolchild who do an 83 on the fist test: y = 0.7399x + 18.989 y = 0.7399(83) + 18.989 y = 80.40 C) Give measures of r and r2 for this forge. Interpret the set of r2 in the context of the problem:  r2 = 0.8474 r = sqrt(0.8474) = 0.92054 84% of the deflection in the second exam score is explained by the runner exam score. 4-15: Yes there is a correlation between the first test grade and the final average which lead me to intend that the first test grade is usually a unconcerned indication of what the students over all performance will be and what their final average will be. 4-17: Accountants at the firm walker and walker believed that several traveling executives submit unusually travel travel vouchers when they return from trips. The accounts. withalk a sample of 200 vouchers submitte d regurgitate up year they then developed the following fivefold relapsing equation relating expected travel cost (Y) to act days on the road (X1) and distance traveled (X2) in millilitres: y= $90,000+$48.50X1+$0.40X2 The coefficient of correlation computed was 0.68.

A) If thomas williams returns form a ccc mile trip that took him of of town for 5 days, what is the expected fare that he should claim as expenses? y= $90+$48.50(5)+$0.40(300) y = $452.50 B) Williams submitted a reimbursement request for $685 what should the control do? The accountant should imagine a 95% prediction interval for the regression model, and reassure whether ! or not $685 falls within it. If not, then the accountant hindquarters be 95% certain that Williams expenses are too high, found on the current model. This does not necessarily dream up that Williams has submitted a fraudulent report, as there may be some other common cause. C.) One possible inconstant might intromit a cost-of-living index for the city visited. The model could also be divided into trips that...If you want to get a full essay, inn it on our website: OrderCustomPaper.com

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