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# Consider the following regression summary:The regression equation isY3 = 104 + 0.204 X3 + 0.0754 ...

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Consider the following regression summary:

The regression equation is

Y3 = 104 + 0.204 X3 + 0.0754 X4

Predictor     Coef SE      Coef       T       P

Constant      103.968     5.049   20.59   0.000

X3            0.20415   0.08503    2.40   0.018

X4            0.07542   0.05760    1.31   0.193

S = 6.38219 R-Sq = 8.1% R-Sq(adj) = 6.2%

Analysis of Variance

Source           DF        SS       MS      F       P

Regression        2    360.63   180.31   4.43   0.014

Residual Error  101   4113.97    40.73

Total           103   4474.59

Perform a global utility test for the model. State the correct decision and reasoning. (Useα= 0.01.)

The model appears to be useful becausep-value = 0.000 < 0.01.

The model does not appear to be useful becausep-value = 0.014 > 0.01.

The model appears to be useful becauseR-Sq (adj) is more than 0.01 less than R-Sq.

The model does not appear to be useful because thep-value = 0.018 > 0.01.

Textbook

## Introductory Statistics: A Problem-Solving Approach

Edition: 3rd
Author:
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whtsi_ep3whtsi_ep3
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