Which of the following statements are false?

Question

(A) The t-distribution should always be used when n is small.

(B) A test of hypothesis is found to have a p-value of .0682. Then one should conclude H1 if the level of significance is 10% and conclude Ho if the level of significance is 5%.

(C) For a fixed sample size, as confidence decreases so does precision.

(D) The power of a test is the probability of rejecting a null hypothesis when it is false.

Question 6 options:

B and C only


B and D only


A and D only


A and C only