If a treatment has a very small effect, then what is a likely outcome for a hypothesis test ...

If a treatment has a very small effect, then what is a likely outcome for a hypothesis test evaluating the treatment?
 
  A) A Type I error
  B) A Type II error
  C) Correctly reject the null hypothesis
  D) Correctly fail to reject the null hypothesis

Question 2

A multiple regression equation is computed for a sample of n = 20 sets of X1, X2, and Y scores. If the significance of the regression equation is evaluated using an F-ratio, then the ratio would have degrees of freedom equal to ____.
 
  A) df = 1, 18
  B) df = 1, 19
  C) df = 2, 17
  D) df = 2, 18