Consider the following multiple linear regression model

sleep = 3840.83 - 0.163 totwrk - 11.71 educ - 8.70 age + 0.128 age^2 + 87.75 male

The variable sleep is total minutes per week spent sleeping at night, totwrk is total weekly minutes spent working, educ and age are measured in years, and male is a gender dummy variable.

The estimated model was fit using 706 observations.

Assume that the Mean Square for Regression is 3418412 and the Mean Square for Error is 174497.

State your conclusions based on the findings in the previous three questions. Ensure that you use the context of the problem.