Question: Explain how you will formulate a model explaining the following. In each case the sample consists of some observations for which the dependent variable is zero. Suggest a list of explanatory variables in each case.
(a) Automobile expenditures (in a year) of a number of families.
(b) Hours worked by a group of married women.
(c) Amount of child support received by a number of working wives.
(d) Medical expenditures of a number of families.
(e) Amount of loan granted by a bank to a number of applicants.
(f) Amount of financial aid received by a group of students at a college.