>> Question 7 3 pts You included two variables (price and delivery option) to test your hypothesis. How many main effects and interaction effects can you examine in this experiment? One main effects only One interaction effects only Two main effects and One interaction effect One main effect and Two interaction effects Question 8 3 pts A moderator can change the direction or magnitude of the relationship between Independent variable and dependent variable. In other words, depending on the different levels of a moderator, the influence of independent variable on dependent variable can be changed. True False