Question

A magazine publishes restaurant ratings for various locations around the world. The magazine rates the restaurants for​ food, service, and the cost per person. Develop a regression model to predict the cost per​ person, based on a variable that represents the sum of the three ratings. The magazine has compiled the accompanying table of this summated ratings variable and the cost per person for 25 restaurants in a major city. Complete parts​ (a) through​ (e) below.

b. Assuming a linear​ relationship, use the​ least-squares method to compute the regression coefficients b0 and b1.

C. predict the mean cost per person for a restaurant with a summated rating of 50

Summated_Rating	Cost_($_per_person)
51	37
67	50
69	60
66	58
63	45
59	39
54	42
62	44
50	35
51	33
52	43
50	39
74	86
63	54
53	35
51	33
54	31
48	23
58	41
56	44
66	62
66	62
53	26
73	46
66	46

Answer 1