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Complete the following worksheet and then use it to calculate the coefficient of determination. (y₁ - y)² 2.506 Xi yi ŷ 15 160 176.583 13.5 220 200.329 16.5 140 152.837 4 14.5 190 184.498 5 17 120 144.922 6 16 160 160.752 7 13 200 208.245 8 18 150 129.091 9 12 220 224.075 10 15.5 190 168.668 Total i 1 2 3 The coefficient of determination (r2) is 216.1652(3.102) 216.165 2(17.520) 425.915 2(3.102) According to the regression model, which of the following is the best estimate together with the 95 percent prediction interval of paint sales (in thousands of gallons) in a sales region where the selling price is $12.50? 425.915 2(17.520) 641.558 491.199 90.212 904.686 203.006 1,105.230 2,107.636 2,408.356 40.094 -0.58 -0.06 (yi - y)² 225.000 2,025.000 1,225.000 225.000 3,025.000 225.000 625.000 What is the price elasticity of demand at a selling price of $12.50? -0.92 625.000 2,025.000 225.000

Complete the following worksheet and then use it to calculate the coefficient of determination. (y₁ - y)² 2.506 Xi yi ŷ 15 160 176.583 13.5 220 200.329 16.5 140 152.837 4 14.5 190 184.498 5 17 120 144.922 6 16 160 160.752 7 13 200 208.245 8 18 150 129.091 9 12 220 224.075 10 15.5 190 168.668 Total i 1 2 3 The coefficient of determination (r2) is 216.1652(3.102) 216.165 2(17.520) 425.915 2(3.102) According to the regression model, which of the following is the best estimate together with the 95 percent prediction interval of paint sales (in thousands of gallons) in a sales region where the selling price is $12.50? 425.915 2(17.520) 641.558 491.199 90.212 904.686 203.006 1,105.230 2,107.636 2,408.356 40.094 -0.58 -0.06 (yi - y)² 225.000 2,025.000 1,225.000 225.000 3,025.000 225.000 625.000 What is the price elasticity of demand at a selling price of $12.50? -0.92 625.000 2,025.000 225.000

MATLAB: An Introduction with Applications
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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Complete the following worksheet and then use it to calculate the coefficient of determination. (ŷi - y)² 2.506 641.558 491.199 90.212 904.686 203.006 1,105.230 2,107.636 2,408.356 40.094 i 1 2 3 X₁ yi ŷ 15 160 176.583 13.5 220 200.329 16.5 140 152.837 14.5 190 184.498 17 120 144.922 16 160 160.752 13 200 208.245 18 150 129.091 9 12 220 224.075 10 15.5 190 168.668 Total 4 5 6 7 8 The coefficient of determination (r²) is According to the regression model, which of the following is the best estimate together with the 95 percent prediction interval of paint sales (in thousands of gallons) in a sales region where the selling price is $12.50? 425.9152(17.520) 216.165 2(3.102) 216.1652(17.520) 425.915 2(3.102) What is the price elasticity of demand at a selling price of $12.50? -0.58 (y₁ - y)² 225.000 2,025.000 1,225.000 225.000 3,025.000 225.000 625.000 625.000 2,025.000 225.000 -0.06 -0.92
Transcribed Image Text:Complete the following worksheet and then use it to calculate the coefficient of determination. (ŷi - y)² 2.506 641.558 491.199 90.212 904.686 203.006 1,105.230 2,107.636 2,408.356 40.094 i 1 2 3 X₁ yi ŷ 15 160 176.583 13.5 220 200.329 16.5 140 152.837 14.5 190 184.498 17 120 144.922 16 160 160.752 13 200 208.245 18 150 129.091 9 12 220 224.075 10 15.5 190 168.668 Total 4 5 6 7 8 The coefficient of determination (r²) is According to the regression model, which of the following is the best estimate together with the 95 percent prediction interval of paint sales (in thousands of gallons) in a sales region where the selling price is $12.50? 425.9152(17.520) 216.165 2(3.102) 216.1652(17.520) 425.915 2(3.102) What is the price elasticity of demand at a selling price of $12.50? -0.58 (y₁ - y)² 225.000 2,025.000 1,225.000 225.000 3,025.000 225.000 625.000 625.000 2,025.000 225.000 -0.06 -0.92
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