I'm stuck on a homework problem and I'm hoping you all might be able to help me out. I'd be very appreciative!
We were given this data set: Data. I ran a regression in Minitab with GPA as the response and IQ and Self-Concept as the predictors. I've answered a number of questions correctly with this regression, but I can't figure out how to interpret the data to answer the following two questions:
- What percent of the variation in GPA is explained by IQ?
- Additional amount of variation explained due to the addition of Self-Concept to the model?
This is what I got from Minitab:
Is this enough information to discern the answer to these questions? If so, how do I interpret this information to find the percent of variation explained by each predictor?