Question: Refer to the previous exercise. a. Set up indicator variables to represent the three service centers. b. The prediction equation is = 7.1 +

Refer to the previous exercise.
a. Set up indicator variables to represent the three service centers.
b. The prediction equation is = 7.1 + 0.5x1 + 0.7x2. Show how the terms in this equation relate to the sample means of 7.6 for San Jose, 7.8 for Toronto, and 7.1 for Bangalore.
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Exercise 14.5 showed an ANOVA for comparing mean customer satisfaction scores for three service centers. The sample means on a scale of 0 to 10 were 7.60 in San Jose, 7.80 in Toronto, and 7.10 in Bangalore. Each sample size = 100, MS error = 0.47, and the F test statistic = 27.6 has P-value < 0.001.

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