Which test is often used for the same kind of research study for ...

[TVarnum]

Which test is often used for the same kind of research study for which the sign test is appropriate?
 
  A) an independent-measures t test
  B) a repeated-measures t test
  C) a Pearson correlation
  D) a chi-square test for goodness of fit

Question 2

In general, if the variance of the difference scores increases, then what will happen to the value of the t statistic?
 
  A) It will increase (move farther toward the tail of the distribution).
  B) It will decrease (move toward 0 at the center of the distribution).
  C) It will stay the same; the t statistic is not affected by the variance of the difference scores.
  D) It may increase or may decrease. There is no consistent relationship between variance and the size of the t statistic.

[fdliggud]

Answer to Question 1

D

Answer to Question 2

B

[TVarnum]

TYSM

[JaynaD87]

Gracias!