Solve the following problem in detail:
Q: Use the following data to develop a regression model to predict y from x1 and x2. Comment on the output. Develop a regression model to predict y from x1 only. Compare the results of this model with those of the model using both predictors. What might you conclude by examining the output from both regression models?
y x1 x2
28 12.6 134
43 11.4 126
45 11.5 143
49 11.1 152
57 10.4 143
68 9.6 147
74 9.8 128
81 8.4 119
82 8.8 130
86 8.9 135
101 8.1 141
112 7.6 123
114 7.8 121
119 7.4 129
124 6.4 135