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Predictor
Coef.
StDev.
Constant
-150
90
X1
2000
500
X2
-25
30
X3
5
X4
-300
100
X5
0.60
0.15
SOURCE
DF
SS
MS
F
Regression
1,500.00
Error
15
Total
20
2,000.0
a) Complete the ANOVA table.
b) Carry out global test of hypothesis, using 0.05 significance level. Can you conclude that any of net regression coefficients are different from zero?
c) Carry out a test of hypothesis on each of regression coefficients. Could you delete any of the variables?
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