Question: 28 (22 points) a) Provide the appropriate regression equation for this problem which requires the use of dummy variables. Note that the number of dummy

28 (22 points) a) Provide the appropriate regression equation for this problem which requires the use of dummy variables. Note that the number of dummy variables needed is always the number of categories (in this case 3) minus 1. (5 points) b) Interpret each of the coefficients including the intercept (6 points; 2 points for each coefficient). Hint: these coefficients can be interpreted as means (averages)

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