Question

Type I error is:

A. Deciding the alternative hypothesis is true when it is false
B. Deciding the alternative hypothesis is true when it is true
C. Deciding the null hypothesis is true when it is false
D. Deciding the null hypothesis is false when it is true
E. All of the above
F. None of the above

Type II error is:

A. Deciding the null 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 alternative hypothesis is false when it is true
E. All of the above
F. None of the above

Answer 1

Question 1

We know that the Type I error is committed in a hypothesis test, if the null hypothesis is rejected, when it is actually True.

So, the correct answer is option (D)  Deciding the null hypothesis is false when it is true.

Question 2

We know that the Type II error is committed in a hypothesis test, if the null hypothesis is accepted, when it is actually False.

So, the correct answer is option (B)  Deciding the null hypothesis is true when it is false.