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##### 1. Problem Set: Lind 15th edition, chapter 13, pr...

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1. Problem Set: Lind 15th edition, chapter 13, problems 13, 14, 15, 16 13 The following sample observations were randomly selected. Df X: 4 5 3 6 10 Y: 4 6 5 7 7 a. Determine the regression equation. b. Determine the value of Y when X is 7. 14 The following sample observations were randomly selected. Df X: 5 3 6 3 4 4 6 8 Y: 13 15 7 12 13 11 9 5 a. Determine the regression equation. b. Determine the value of Y when X is 7. 15 Bradford Electric Illuminating Company is studying the relationship between kilowatt-hours (thousands) used and the number of rooms in a private single-family residence. A random sample of homes yielded the following. Df Number of Kilowatt-Hours Number of Kilowatt-Hours Rooms (thousands) Rooms (thousands) 12 9 8 6 9 7 10 8 14 10 10 10 6 5 5 4 10 8 7 7 a. Determine the regression equation. b. Determine the number of Kilowatt-hours, in thousands, for a six-room house. 16 Mr. James McWhinney president of Daniel-James Financial Services, believes there is a relationship between the number of client contacts and the dollar amount of sales. To document the assertion, Mr McWhinney gathered the following sample information. The X column indicates the number of client contacts last month, and Y column shows the value of sales ($ thousands) last month for each client sampled. Df Number of Sales Number of Sales Contacts, ($ thousands), Contacts, ($ thousands), X Y X Y 14 24 23 30 12 14 48 90 20 28 50 85 16 30 55 120 46 80 50 110 a. Determin the regression equation. b. Determine the estimated sales if 40 contacts are made.

Paper#13338 | Written in 18-Jul-2015

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