Exercise

Exercise 11 - Difference in Expected Values Between Polls

Using what we learned by answering the previous questions, what is the expected value of \(\bar{Y}_{2} - \bar{Y}_1\)?

Instructions

50 XP

Possible Answers

$$(b_2 - b_1)^2$$
$$b_2 - b_1/\sqrt(N)$$
$$b_2 + b_1$$
$$b_2 - b_1$$