Question: 57. Consider the following partial computer output for a multiple regression model. PredictorCoefficientStandard Deviation Constant41.2256.380 X11.0811.353 X2-18.4044.547 Analysis of Variance SourceDFSS Regression22270.11 Error263585.75 What is

57. Consider the following partial computer output for a multiple regression model.

PredictorCoefficientStandard Deviation

Constant41.2256.380

X11.0811.353

X2-18.4044.547

Analysis of Variance

SourceDFSS

Regression22270.11

Error263585.75

What is the number of Observations in the sample? Write the least squares regression (prediction) equation. Test the usefulness of variable x2 in the model at alpha =.05. Calculate the t statistic and state your conclusions. Also find Total Sum of Squares, Explained Variation, SSE, MSE, R-Squared, and Test the overall usefulness of the model at 1% level of significance calculating the F-Statistic. (Ch 15)

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