Chapter 14, Problem 7RE

(a)

To determine

The correlation matrix.

To determine

To identify: The multicolinearity.

(b)

To determine

To identify: The least-squares regression equation.

(c)

To determine

To draw: The residual plot.

To determine

To draw: The boxplot.

To determine

To draw: The normal plot.

(d)

To determine

To interpret: The regression coefficient.

(e)

To determine

The value of $R^2$.

To determine

To interpret: The value of $R^2$.

To determine

The value of adjusted $R^2$.

To determine

To interpret: The value of adjusted $R^2$.

(f)

To determine

To test: The hypothesis.

(g)

To determine

To test: The hypothesis.

To determine

To test: The hypothesis.

(h)

To determine

The confidence interval.

(i)

To determine

The confidence interval.

To determine

To interpret: The result.

To determine

The prediction interval.

To determine

To interpret: The result.

To determine

To interpret: The results.