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# Exam1 - IE 410 Midterm Exam Fall 2003 Answer Sheet...

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IE 410 Midterm Exam Fall 2003 Answer Sheet Instructions Exam is to be completed by Thursday, October 8. On campus students should hand in the exam then. Distance students can mail, e-mail, or fax on Oct 8. Please use this fax number: (610) 758-4886. The exam is of course open book and notes. You may use Statgraphics or any other package. You may not discuss the exam with anyone except me. You should however feel free to ask me any questions you want. Of course I will exercise discretion in answering them. I will grade the answers you provide on the answer sheet on the next page. You may write by hand or use no smaller than 10 point font. You may not increase the area provided on the answer sheet. You may attach supporting documentation (which I may or may not look at). The exam questions follow the answer sheet Question 1 What sample size would you recommend? N=_______ n=_________ Question 2 a) What is the P-value of the ANOVA F-test? ___________ b) What contrast would you recommend to test for differences in cash offers between sexes? c) Estimate the contrast in part b) and provide a 99% confidence interval. d) Test the contrast you recommended in b). What is the P-value of the test? _________ e) Conduct the appropriate test(s). What is the P-value of the test?

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Question 3 a) Perform a complete residual analysis. Comment on the results. b) If a transform is indicated in part a), perform it, recalculate the analysis of variance, and conduct a new residual analysis. Is a transform required? If so, what value of λ ?
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Exam1 - IE 410 Midterm Exam Fall 2003 Answer Sheet...

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