If you have a sufficiently large sample that was randomly drawn from your target population with a randomly assigned treatment then all of the following conditions hold except for what?
A) Selection bias = 0
B) Difference in average outcomes for treated and control groups is an unbiased estimate of the ATE.
C) The distribution for the difference in average outcomes for treated and control groups will be distributed normally.
D) None of the answers is correct.

Question

Quizplus · Accepted Answer

None of the answers are correct. A large randomly drawn sample with a randomly assigned treatment would not necessarily guarantee that the distribution of the difference in average outcomes for treated and control groups will be normal, as it would depend on the characteristics of the population and treatment.

If You Have a Sufficiently Large Sample That Was Randomly