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 wasY= overall satisfaction score,X₁= lift line wait,X₂= amount of ski trail grooming,X₃= safety patrol visibility, andX₄= friendliness of guest services.

(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 |:| Predictor Coefficient Intercept 2. 7785 LiftWait 0 . 1554 AmountGroomed 0. 2313 SkiPatrolVisibility 0 . 0481 FriendlinessHosts -0. 1218 (a) Write the fitted regression equation. (Round your answers to 4 decimal places. Negative values should be indicated by a minus sign.) y = + * LiftWait + * AmountGroomed + * SkiPatrolVisibility + * FriendlinessHosts