Refer to Exercise 17.20. Use stepwise regression to calculate the equation.

In exercise 17.20

The Nielsen Ratings estimate the number of televisions tuned to various channels. However, television executives need more information. The General Social Survey may be the source of this information. Respondents were asked to report the number of hours per average day of television viewing (TVHOURS). Conduct a regression analysis using the independent variables age (AGE), education (EDUC), hours of work (HRS1), and number of children (CHILDS).