Vail Resorts asked a random sample of guests to rate their satisfaction on various attributes of their visit on a scale of 1­5 with 1 = very unsatisfied and 5 = very satisfied. The estimated regression model was Y = overall satisfaction score, X1 = lift line wait, X2 = amount of ski trail grooming, X3 = safety patrol visibility, and X4 = friendliness of guest services.
(a) Write the fitted regression equation.
(b) Interpret each coefficient.
(c) Would the intercept seem to have meaning in this regression?
(d) Make a prediction for Overall Satisfaction when a guest's VailGuestSat2 satisfaction in all four areas is rated a 5.

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Predictor Coefficient Intercept LiftWait AmountGroomed SkiPatroVisibility FriendiinessHosts 2.8931 0.1542 0.2495 0.0539 -0.1196