Understanding the Concepts and Skills For two variables satisfying Assumptions 1–3 for regression inferences, the population regression equation is y = 20 − 3.5 x . For samples of size 10 and given...

Understanding the Concepts and Skills

For two variables satisfying Assumptions 1–3 for regression inferences, the population regression equation is
y
= 20 − 3.5x. For samples of size 10 and given values of the predictor variable, the distribution of slopes of all possible sample regression lines is a ______ distribution with mean _________.