Statistic Multiple Regression

timer Asked: Dec 12th, 2015

Question description

When the regression model y=Bo +B1x1+B2x2+B3x1^2+B4x2^2+B5x1x2+e is run and the following output is obtained, then 

Annova     df      ss

regression 4      42657846

Residual     74    19413277

Total           79      62071123

a) the numerator and denominator degrees of freedom for the global usefulness test are 

b) Find coefficient of determination R^2 

c) Find the estimated error standard deviation s 

We're ...... % confident that the true value of y would be approximatelyy within +/- ------

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