aianjie

1、  The correct answer is A

 

Changes attributable to a particular condition or day should be tested using a dummy variable.

aianjie

2、With respect to publicly available and privately purchased data, in estimating an econometric model, a researcher can use:

A) neither publicly available nor privately purchased data.

B) privately purchased but not publicly available data.

C) both publicly available and privately purchased data.

D) publicly available but not privately purchased data.