Chapter 14, Problem CS

(a)

To determine

The correlation matrix.

To determine

To identify: The multicollinearity.

(b)

To determine

The regression equation using least-squares method.

(c)

To determine

To test: The hypothesis.

(d)

To determine

To test: The hypothesis.

To determine

To test: The hypothesis.

To determine

To test: The hypothesis.

To determine

To test: The hypothesis.

To determine

To test: The hypothesis.

To determine

To test: The hypothesis.

(e)

To determine

To explain: Which explanatory variables should be removed.

To determine

The model of best fit.

(f)

To determine

To draw: The residual plot.

To determine

To draw: The boxplot.

(g)

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 $R^2$.

(h)

To determine

The predicted selling price for the house.

To determine

To compare: The predicted selling price with the actual selling price.

(i)

To determine

The boxplots of the three zip codes.

(j)

Section 1:

To determine

The model for the best fit of the first zip code.

To determine

To test: The hypothesis.

To determine

To test: The hypothesis.

To determine

To test: The hypothesis.

To determine

To test: The hypothesis.

To determine

To test: The hypothesis.

To determine

To test: The hypothesis.

To determine

To test: The hypothesis.

To determine

To explain: Which explanatory variables should be removed.

To determine

The model of best fit for the first zip code.

To determine

To draw: The residual plot.

To determine

To draw: The boxplot.

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 $R^2$.

To determine

The model for the best fit of the second zip code.

To determine

To test: The hypothesis.

To determine

To test: The hypothesis.

To determine

To test: The hypothesis.

To determine

To test: The hypothesis.

To determine

To test: The hypothesis.

To determine

To test: The hypothesis.

To determine

To test: The hypothesis.

To determine

To explain: Which explanatory variables should be removed.

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 $R^2$.

To determine

The model for the best fit of the third zip code.

(k)

To determine

The predicted selling price for the first zip houses.

(l)

To determine

To predict: The selling price of a house using the model with first zip code.

To determine

To predict: The selling price of a house using the model with second zip code.

(m)

To determine

To explain: The limitations of the model.

(n)

To determine

To explain: The variables that affect the cost of the house.

To determine

The data from the survey that affects the selling price of the houses.

To determine

To find: The model of best fit.