Question

Medical researchers conducted a randomized experiment to see if a new hormone ther-apy was more helpful for relieving hot flashes in postmenopausal women than no treat-ment at all. 42 women were randomly assigned to receive this hormone replacement therapy (HRT), and 42 were assigned to receive a placebo. Of those who were given theHRT (the first group), 30 women experienced symptom reliefs, and of those who wereassigned the placebo, 16 experienced symptom reliefs.

i. If we were to conduct a significance test for this experiment, what would the alter-native hypothesis be?

ii. Have all assumptions to construct a 95% CI been met for this experiment? If no,which assumption was violated? If yes, then compute the 95% confidence intervaland give the interpretation of this CI.

Please explain the assumptions for the CI if possible. I am mainly confused on the "at least 15 successes and failures" assumption. So I don't think a CI would be viable?

Answer 1