You are testing for a relationship between X and Y in a simple linear regression model. Briefly explain how the following changes affect the p-value for the slope. a. How does the p-value change if...

Explain a and b

Extracted text: You are testing for a relationship between X and Y in a simple linear regression model. Briefly explain how the following changes affect the p-value for the slope. a. How does the p-value change if you switch from (i) performing a two-sided hypothesis test to instead (ii) performing a one-sided hypothesis test? Answer: Falls by half b. How does the p-value change if you switch from (i) using Y as your dependent variable and X as your independent variable to instead (ii) using X as your dependent variable and Y as your independent variable? Answer: No change