Unlike the residuals, which represent errors of estimation for individual points

Question

Unlike the residuals, which represent errors of estimation for individual points, an alternative way to examine the error of the regression model using a single measurement is to determine the ____________.

      sum of the residuals squared (denoted by SSE)

average of all the residuals

standard error of estimate (denoted by se)

sum of all the residuals

The coefficient of correlation in a simple regression analysis is = - 0.6. The coefficient of determination for this regression would be __________.

0.36

0.13

- 0.36

- 0.6 or + 0.6

0.6

If the residual plot, i.e., a graph in which the residuals for a particular regression model are plotted along with their associate value of x as an ordered pair, shows a parabolic pattern, which of the following assumptions of the simple regression model is likely to be in violation?

The error terms are independent

The error terms have constant variance

The error terms are uniformly distributed

The model is linear

      sum of the residuals squared (denoted by SSE)

Explanation / Answer

The coefficient of correlation in a simple regression analysis is = - 0.6. The coefficient of determination for this regression would be __________.

r^2=

0.36

0.36

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