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.

Predictor Coefficient

Intercept 2.8599

LiftWait 0.1478

AmountGroomed 0.2504

SkiPatrolVisibility 0.0620

FriendlinessHosts 0.1052

(a)Write the fitted regression equation.(Round your answers to 4 decimal places. Negative values should be indicated by a minus sign.)

y

y^

= Blank + Blank* LiftWait+ Blank* AmountGroomed+ Blank* SkiPatrolVisibility+ Blank *FriendlinessHosts

Fill in the Blanks with answer

(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= ?