Which of the following is NOT a correct version of an alternative ...

[captainjonesify]

Which of the following is NOT a correct version of an alternative hypothesis?
 
  a. The treatment affects the effect.
  b. The treatment improves the effect.
  c. The treatment reduces the effect.
  d. The treatment does not cause the effect.

Question 2

An experimenter predicts that being a member of a team in college will affect a student's grade point average. In this case, the null hypothesis would be that being a member of a team in college _____.
 
  a. increases GPA c. affects GPA
  b. does not increase GPA d. does not affect GPA

[Pswine]

Answer to Question 1

D
The alternative statement states that the treatment affects the cause either by not specifying it (as in a), or by specifying the direction of the effect (as in b and c). Alternative d is the null hypothesis.

Answer to Question 2

D
The null hypothesis states that the treatment (being on a team) does affect GPA.

[captainjonesify]

TYSM

[AngeliqueG]

Excellent