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A multiple regression analysis has been done on these data

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Reference no: EM13578921

Shown here are the data for y and three predictors, x1, x2, and x3. A multiple regression analysis has been done on these data; the Minitab results are given. Comment on the outcome of the analysis in light of the data.

y

x1

x2

x3

94

21

1

204

97

25

0

198

93

22

1

184

95

27

0

200

90

29

1

182

91

20

1

159

91

18

1

147

94

25

0

196

98

26

0

228

99

24

0

242

90

28

1

162

92

23

1

180

96

25

0

219

Regression Analysis: Y versus X1,X2,X3

The regression equation is Y = 87.9 - 0.256 X1 - 2.71 X2 + 0.0706 X3

Predictor

Coef

SE Coef

T

P

Constant

87.890

3.445

25.51

0.000

X1

-0.25612

0.08317

-3.08

0.013

X2

-2.7137

0.7306

-3.71

0.005

X3

0.07061

0.01353

5.22

0.001

S = 0.850311

R-Sq = 94.1%

R-Sq(adj) = 92.1%

Reference no: EM13578921

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