14 a Type I error is A Deciding the alternative hypothesis i

14. (a) Type I error is:

A. Deciding the alternative hypothesis is true when it is false

B. Deciding the null hypothesis is false when it is true

C. Deciding the alternative hypothesis is true when it is true

D. Deciding the null hypothesis is true when it is false

E. All of the above

F. None of the above  

(b)Type II error is:

A. Deciding the alternative hypothesis is false when it is true

B. Deciding the null hypothesis is true when it is false

C. Deciding the alternative hypothesis is true when it is true

D. Deciding the null hypothesis is false when it is true

E. All of the above

F. None of the above  

Solution

14.

OPTION B: Deciding the null hypothesis is false when it is true [ANSWER]

Note: A type I error is incorrectly rejecting a true null hypothesis.
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15.

OPTION B: Deciding the null hypothesis is true when it is false [ANSWER]

Note: A type II error is incorrectly failing to reject a false null hypothesis.