The following equation explains weekly hours of television viewing by a child in terms of the child's age, mother's education, father's education, and number of siblings:
Tv hours* = (0 + (1 age + (2age2 + (3 motheduc + (4 fatheduc + (5 sibs + u.
We are worried that tv hours* is measured with error in our survey. Let tv hours denote the reported hours of television viewing per week.
(i) What do the classical errors-in-variables (CEV) assumptions require in this application?
(ii) Do you think the CEV assumptions are likely to hold? Explain.