Question: Using Garbage to Predict Population Size Refer to Data Set 23 in Appendix B. a. Find the regression equation that expresses the dependent variable of

Using Garbage to Predict Population Size Refer to Data Set 23 in Appendix B.

a. Find the regression equation that expresses the dependent variable of household size in terms of the independent variable of the weight of discarded food.

b. Find the regression equation that expresses the dependent variable of household size in terms of the independent variable of the weight of discarded plastic.

c. Find the regression equation that expresses the dependent variable of household size in terms of the independent variables of the weight of discarded food and the weight of discarded plastic.

d. For the regression equations found in parts (a), (b), and (c), which is the best equation for predicting the household size? Why?

e. Is the best regression equation identified in part

(d) a good equation for predicting the household size? Why or why not?

9-5 Beyond the Basics

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