The question of reliability/unreliability of a multiple regression depends on
A) internal but not external validity
B) the quality of your statistical software package
C) internal and external validity
D) external but not internal validity
Question 2
The only difference between a one- and two-sided hypothesis test is
A) the null hypothesis.
B) dependent on the sample size n.
C) the sign of the slope coefficient.
D) how you interpret the t-statistic.
