Please help with this problem.

A ski resort asked a random sample of guests to rate their satisfaction on various attributes of their visit on a scale of 1-5 with 1 = very unsatisfied and 5 = very satisfied. The estimated regression model was Y = overall satisfaction score, X, = lift line wait, X2 = amount of ski trail grooming, X; = safety patrol visibility, and X4 = friendliness of guest services. Predictor Coefficient Intercept 2.9612 LiftWait 0. 1563 AmountGroomed 0. 2344 SkiPatrolVisibility 0.0550 FriendlinessHosts -0. 1069 (a) Write the fitted regression equation. (Round your answers to 4 decimal places. Negative values should be indicated by a minus sign.) "LiftWait + * AmountGroomed + SkiPatrolVisibility + " FriendlinessHosts (d) Make a prediction for Overall Satisfaction when a guest's satisfaction in all four areas is rated a 4. (Round your answer to 4 decimal places.) Overall satisfaction score