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Exhibit 15-6 Below you are given a partial Excel output based on a sample of 16...

Exhibit 15-6
Below you are given a partial Excel output based on a sample of 16 observations.

ANOVA

df

SS

MS

F
Regression

4,853

2,426.5
Residual

585.3

Coefficients

Standard Error
Intercept

12.924

4.425
x1

-3.682

1.630
x2

45.216

22.560

A) The degrees of freedom for the sum of squares explained by the regression (SSR) are _____.

B) The sum of squares due to error (SSE) equals _____.

C) The test statistic used to determine if there is a relationship among the variables equals ______.

D) The critical  F value used to test if there is a relationship among the variables at the 5% level equals _____.

E) Carry out the test to determine if there is a relationship among the variables at the 5% level. The null hypothesis should ______.

math   Statistics-And-Probability   
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Answer #1

Ans :

A) degree of freedom for SSR = 2

B) degree of freedom for SSE = 13

C) Test statistics = 4.1457

D) Critical F value = 3.8056

E)

The null hypothesis should be rejected

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