Use the table and the given regression equation to answer parts (a)-(e). 5 -5 X y 05 25 SSR= (Type an integer or a decimal.) No Yes 2 0 6 8 BICHHI a. Compute the three sums of squares, SST, SSR, and SSE, using the defining formulas. SST = (Type an integer or a decimal.) y = 3.35 -0.25x SSE= (Type an integer or a decimal.) b. Verify the regression identity, SST = SSR + SSE. Is this statement correct? c. Determine the value of r2, the coefficient of determination. 2-0 (Round to four decimal places as needed.) d. Determine the percentage of variation in the observed values of the response variable that is explained by the rearession.
Use the table and the given regression equation to answer parts (a)-(e). 5 -5 X y 05 25 SSR= (Type an integer or a decimal.) No Yes 2 0 6 8 BICHHI a. Compute the three sums of squares, SST, SSR, and SSE, using the defining formulas. SST = (Type an integer or a decimal.) y = 3.35 -0.25x SSE= (Type an integer or a decimal.) b. Verify the regression identity, SST = SSR + SSE. Is this statement correct? c. Determine the value of r2, the coefficient of determination. 2-0 (Round to four decimal places as needed.) d. Determine the percentage of variation in the observed values of the response variable that is explained by the rearession.
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter1: Functions
Section1.CR: Chapter 1 Review
Problem 86CR
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Transcribed Image Text:d. Determine the percentage of variation in the observed values of the response variable that is explained by the
regression.
7%
(Round to two decimal places as needed.)
e. State how useful the regression equation appears to be for making predictions.
OA. Not useful
B. Moderately useful
OC. Very useful
Transcribed Image Text:Use the table and the given regression equation to answer parts (a)-(e).
+
X
y
0
5
25
20
SSR=
(Type an integer or a decimal.)
55
-5
88
6
a. Compute the three sums of squares, SST, SSR, and SSE, using the defining formulas.
SST=
(Type an integer or a decimal.)
A
y = 3.35 -0.25x
SSE=
(Type an integer or a decimal.)
b. Verify the regression identity, SST = SSR + SSE. Is this statement correct?
No
O Yes
c. Determine the value of r2, the coefficient of determination.
2=0
(Round to four decimal places as needed.)
d. Determine the percentage of variation in the observed values of the response variable that is explained by the
regression.
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