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Practice15-1Solns

# Practice15-1Solns - Solutions to BUAD 310 In-Class Practice...

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- 1 - Solutions to BUAD 310 In-Class Practice for Final 4/29/08 Attached are the Standard Normal Table, t Table, and Chi-Square Table that we used in class. 1. The multiple coefficient of determination is the _______ divided by the total variation A) Unexplained variation B) SSE C) Explained variation D) Distance value E) Correlation Coefficient 2. A multiple regression analysis with 20 observations on each of three independent variables and the dependent variable would yield ______ and _______ degrees of freedom respectively for regression and error. 3. In multiple regression analysis, the mean square regression divided by mean square error yields the: 4. Suppose that we are testing the significance of the independent variable X 1 and we reject the null hypothesis H 0 : b 1 = 0. We conclude that: 5. In a multiple regression model, it is desired to include marital status, which has the categories: single, married, separated, divorced, and widowed. What will be the effect on the model? A) One more independent variable will be included. B) Two more independent variables will be included. C) Three more independent variables will be included. D) Four more independent variables will be included. E) Five more independent variables will be included.

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- 2 - Use the following information for questions 6 and 7 . The employees of McIntyre Publishing were offered participation in the company s health plan. Some accepted this health plan, and some declined, possibly to use the plan of a spouse or other relative. Here are relevant figures: Participate in company health plan? YES Participate in company health plan? NO TOTAL Male 512 108 620 Female 370 130 500 TOTAL 882 238 1120
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Practice15-1Solns - Solutions to BUAD 310 In-Class Practice...

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