Which of the following statements are false?
(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