Given the information in Exercise 15.12, determine and interpret the 90% confidence and prediction intervals associated with gross revenue when there are 200 equity partners.
In exercise
For the top law firms in the world in terms of profit per equity partner, data file XR15012 lists the number of equity partners and the gross revenue ($ millions) for the most recent fiscal year. Given these data, determine the least-squares equation for predicting gross revenue on the basis of the number of equity partners, then interpret its slope.