Houjichasan

Good question - fairly basic with some tricks. It would be better if :

Multiple R was not given, (what is multiple r anyways - it is not a term defined in SS3).

For 19, choice B should be same value as Choice c (but with a negative sign). since correlation r = sqrt of r-squared (for a simple linear regression). Also, the sign of the slope coefficient comes into picture since both choice B and C would have satisfied the sqrt equation.

For 22, choice C is appropriate because F and t statistics mean the same thing for a simple linear regresssion. The answer does not say that - even though it correctly defines p-value as the decision criteria for statistical significance.