A researcher wants to know how the time that one stops drinking water (before 6pm, after 6pm), plus the beverages they consume during the day (coffee, no coffee), influences the number of times...

A researcher wants to know how the time that one stops drinking water (before 6pm, after 6pm), plus the beverages they consume during the day (coffee, no coffee), influences the number of times participants wake up in the middle of the night to pee. Using the data below, find the main effect of time that one stops drinking water.
1) Provide the marginal means for before 6 PM and after 6 PM, and 2) describe the effect of time that one stops drinking water on trips to the bathroom