A multiple regression equation is computed for a sample of n = 20 ...

[lbcchick]

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

Question 2

A researcher administers a treatment to a sample of participants selected from a population with  = 80. If a hypothesis test is used to evaluate the effect of the treatment, which combination of factors is most likely to result in rejecting the null hypothesis?
 
  A) A sample mean near 80 with  = .05
  B) A sample mean near 80 with  = .01
  C) A sample mean much different than 80 with  = .05
  D) A sample mean much different than 80 with  = .01

[AngeliqueG]

Answer to Question 1

C

Answer to Question 2

C

[lbcchick]

Thanks for the timely response, appreciate it

[daiying98]

Wow, this really help