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Use the following to answer the questions below:Output for a model to predict the GPAs of students ...

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Posts: 135
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3 weeks ago
Use the following to answer the questions below:

Output for a model to predict the GPAs of students at a small university based on their Math SAT scores, Verbal SAT scores, and the number of hours spent watching television in a typical week is provided.

The regression equation is
GPA = 1.80 + 0.00104 Math SAT + 0.00142 Verbal SAT - 0.0147 TV

 Predictor Coef SE Coef T P Constant 1.8015 0.1842 9.78 0.000 Math SAT 0.0010442 0.0002500 4.18 0.000 Verbal SAT 0.0014182 0.0002398 5.91 0.000 TV -0.014708 0.003269 -4.50 0.000
S = 0.366780        R-Sq = ????%        R-Sq(adj) = 19.0%

Analysis of Variance

 Source DF SS MS F P Regression ? 14.4886 4.8295 35.90 0.000 Residual Error ? 59.7304 0.1345 ​ ​ Total 447 74.2190 ​ ​ ​

A dotplot of the residuals and a scatterplot of the residuals versus the predicted values are provided. Discuss whether the conditions for a multiple linear regression are reasonable by referring to the appropriate plots.

Textbook

Statistics: Unlocking the Power of Data

Edition: 3rd
Authors:
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Jgal Author
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3 weeks ago
 Helped a lot
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Yesterday
 this is exactly what I needed
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2 hours ago
 Correct TY