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, X1 = lift line wait, X2 = amount of ski trail grooming, X3 = safety patrol visibility, and X4 = friendliness of guest services.   Predictor Coefficient Intercept 2.7115   LiftWait 0.1474   AmountGroomed 0.2517   SkiPatrolVisibility 0.0656   FriendlinessHosts −0.1172        (a) Write the fitted regression equation. (Round your answers to 4 decimal places. Negative values should be indicated by a minus sign.)   yˆy^ = ?? + ?? * LiftWait + ?? * AmountGroomed + ?? * SkiPatrolVisibility + ??  * FriendlinessHosts   (b) Interpret each coefficient.   Overall satisfaction increases  Correctwith an increase in satisfaction for each individual predictor except for friendliness of hosts. (c) Would the intercept seem to have meaning in this regression?   multiple choice Yes No Correct (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

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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, X1 = lift line wait, X2 = amount of ski trail grooming, X3 = safety patrol visibility, and X4 = friendliness of guest services.
 

Predictor Coefficient
Intercept 2.7115  
LiftWait 0.1474  
AmountGroomed 0.2517  
SkiPatrolVisibility 0.0656  
FriendlinessHosts −0.1172  
 

  
(a) Write the fitted regression equation. (Round your answers to 4 decimal places. Negative values should be indicated by a minus sign.)
 
yˆy^ = ?? + ?? * LiftWait + ?? * AmountGroomed + ?? * SkiPatrolVisibility + ??  * FriendlinessHosts
 
(b) Interpret each coefficient.
 
Overall satisfaction increases  Correctwith an increase in satisfaction for each individual predictor except for friendliness of hosts.

(c) Would the intercept seem to have meaning in this regression?
 
multiple choice

  • Yes
  • No Correct


(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            

 

 
 
 
 
 
 
 
 
 
 
 
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