Applying the Concepts and Skills For Exercises, a. compute SST, SSR, and SSE, using Formula on page 641. b. compute the coefficient of determination, r2. c. determine the percentage of variation in...

Applying the Concepts and Skills
For Exercises,
a. compute SST, SSR, and SSE, using Formula on page 641.
b. compute the coefficient of determination, r2.
c. determine the percentage of variation in the observed values of the response variable explained by the regression, and interpret your answer.
d. state how useful the regression equation appears to be for making predictions.
FORMULA
Computing Formulas for the Sums of Squares
The computing formulas for the three sums of squares are
and SSE= SST-SSR.
Corvette Prices. Following are the age and price data for Corvettes from Exercise 14.59:

x	6	6	6	2	2.0	5	4	5	1	4
y	290	280	295	425	384	315	355	328	425	325

Extracted text: SST = Ey? – (Ey,)/n, SSR = [Σxy- (Σx)(Σγ)/ n7? Σ- ΣxF/ %3D

Jun 02, 2022

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Applying the Concepts and Skills For Exercises, a. compute SST, SSR, and SSE, using Formula on page 641. b. compute the coefficient of determination, r2. c. determine the percentage of variation in...

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