Discuss the below:
The Minitab output displayed here is the result of a multiple regression analysis with three independent variables. Variable x1 is a dummy variable. Discuss the computer output x1 and the role plays in this regression model.
The regression equation is
Y1=121+13.4X, -0.632X2 +1.42X3
Predictor Coal Stdev T p
Constant 121.31 11.56 10.50 .000
X. 13.355 4.714 2.83 .014
X, -0.6322 0.2270 -2.79 .015
X3 1.421 3.342 0.43 .678
S = 7.041 R-sq = 79.5% R-sq(adj) = 74.7%
Volysisthevadance
Source df SS MS e p
Regression 3 2491.98 830.66 16.76 .000
Error 13 644.49 49.58
Total 16 3136.47