Just looking for some help with the interpretation of my multiple linear model output and also some validation on the methods I used.
I have 1 response - Ball speed and 9 continuous predictors and 1 categorical predictor (the type of club with 4 levels).
I have used forward entry method with condition for entry alpha = 0.05
I get from the output with mini-tab, 4 regression equations one for each club. With only a changing y-intercept but the coefficient for other predictors between the clubs stays the same. Is this correct and can anyone explain why? I was expecting the coefficient for the other predictor variables to change with each club.