Value of coefficient of determination (r2)
= 1 - SSE/SST
= 1 - 76.67/784.8
= 0.902
= 90.2%
Option C is correct.
A representative sample of 190 students resulted in a regression equation between y = left hand...
A representative sample of 190 students resulted in a regression equation between y = left hand spans (cm) and x = right hand spans (cm). The least squares regression equation is y = 1.6 + 0.94 x. For a student with a right and left hand span of 28 cm, what is the value of the residual? Give your answer to 2 decimal places.
A regression equation estimating left palm length (Y variable) based on right palm length (X variable) based on a sample of 55 college students resulted in an error sum of squares (SSE) of 10.7 and a total sum of squares (SST) of 85.2. The R2 for this model is ______. a. 87.4% b. 12.6% c. 74.5% d. Cannot be determined from the information provided
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The accompanying data resulted from a study of the relationship between y = brightness of finished paper and the independent variables x1 = hydrogen peroxide (% by weight), x2 = sodium hydroxide (% by weight), x3 = silicate % by weight), and X4 = process temperature. y 0.1 0.3 2.5 160 82.9 0.2 0.2 1.5 145 83.9 0.4 0.2 1.5 145 84.9 0.5 0.3 2.5 160 85.5 0.3 0.1 2.5 160 85.2 0.2 0.4 1.5 145 83.4 0.4 | 0.4...
Consider a multiple regression model of the dependent variable y on independent variables x1, X2, X3, and x4: Using data with n 60 observations for each of the variables, a student obtains the following estimated regression equation for the model given: y0.35 0.58x1 + 0.45x2-0.25x3 - 0.10x4 He would like to conduct significance tests for a multiple regression relationship. He uses the F test to determine whether a significant relationship exists between the dependent variable and He uses the t...
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