4. The Consumer Reports Restaurant Customer Satisfaction Survey is based upon 148,599 visits to full-service restaurant chains (Consumer Reports website, February 11, 2009). Assume the following data are representative of the results reported. The variable type indicates whether the restaurant is an Italian restaurant or a seafood/steakhouse. Price indicates the average amount paid per person for dinner and drinks, minus the tip. Score reflects diners’ overall satisfaction, with higher values indicating greater overall satisfaction. A score of 80 can be interpreted as very satisfied. Restaurant Type Price ($) Score Bertucci's Italian 16 77 Black Angus Steakhouse Seafood/Steakhouse 24 79 Bonefish Grill Seafood/Steakhouse 26 85 Bravo! Cucina Italiana Italian 18 84 Buca di Beppo Italian 17 81 Bugaboo Creek Steak House Seafood/Steakhouse 18 77 Carrabba's Italian Grill Italian 23 86 Charlie Brown's Steakhouse Seafood/Steakhouse 17 75 Il Fornaio Italian 28 83 Joe's Crab Shack Seafood/Steakhouse 15 71 Johnny Carino's Italian Italian 17 81 Lone Star Steakhouse & Saloon Seafood/Steakhouse 17 76 LongHorn Steakhouse Seafood/Steakhouse 19 81 Maggiano's Little Italy Italian 22 83 McGrath's Fish House Seafood/Steakhouse 16 81 Olive Garden Italian 19 81 Outback Steakhouse Seafood/Steakhouse 20 80 Red Lobster Seafood/Steakhouse 18 78 Romano's Macaroni Grill Italian 18 82 The Old Spaghetti Factory Italian 12 79 Uno Chicago Grill Italian 16 76 a. Develop the estimated regression equation to show how overall customer satisfaction is related to the independent variable average meal price. b. At the 0.05 level of significance, test whether the estimated regression equation developed in part (a) indicates a significant relationship between overall customer satisfaction and average meal price. c. Develop a dummy variable that will account for the type of restaurant (Italian or seafood/steakhouse).
4. The Consumer Reports Restaurant Customer Satisfaction Survey is based upon 148,599 visits to full-service restaurant chains (Consumer Reports website, February 11, 2009). Assume the following data are representative of the results reported. The variable type indicates whether the restaurant is an Italian restaurant or a seafood/steakhouse. Price indicates the average amount paid per person for dinner and drinks, minus the tip. Score reflects diners’ overall satisfaction, with higher values indicating greater overall satisfaction. A score of 80 can be interpreted as very satisfied.
Restaurant |
Type |
Price ($) |
Score |
Bertucci's |
Italian |
16 |
77 |
Black Angus Steakhouse |
Seafood/Steakhouse |
24 |
79 |
Bonefish Grill |
Seafood/Steakhouse |
26 |
85 |
Bravo! Cucina Italiana |
Italian |
18 |
84 |
Buca di Beppo |
Italian |
17 |
81 |
Bugaboo Creek Steak House |
Seafood/Steakhouse |
18 |
77 |
Carrabba's Italian Grill |
Italian |
23 |
86 |
Charlie Brown's Steakhouse |
Seafood/Steakhouse |
17 |
75 |
Il Fornaio |
Italian |
28 |
83 |
Joe's Crab Shack |
Seafood/Steakhouse |
15 |
71 |
Johnny Carino's Italian |
Italian |
17 |
81 |
Lone Star Steakhouse & Saloon |
Seafood/Steakhouse |
17 |
76 |
LongHorn Steakhouse |
Seafood/Steakhouse |
19 |
81 |
Maggiano's Little Italy |
Italian |
22 |
83 |
McGrath's Fish House |
Seafood/Steakhouse |
16 |
81 |
Olive Garden |
Italian |
19 |
81 |
Outback Steakhouse |
Seafood/Steakhouse |
20 |
80 |
Red Lobster |
Seafood/Steakhouse |
18 |
78 |
Romano's Macaroni Grill |
Italian |
18 |
82 |
The Old Spaghetti Factory |
Italian |
12 |
79 |
Uno Chicago Grill |
Italian |
16 |
76 |
a. Develop the estimated regression equation to show how overall customer satisfaction is related to the independent variable average meal price.
b. At the 0.05 level of significance, test whether the estimated regression equation developed in part (a) indicates a significant relationship between overall customer satisfaction and average meal price.
c. Develop a dummy variable that will account for the type of restaurant (Italian or seafood/steakhouse).
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