BDA 201: Introduction to Business Analytics
- From the following data and given output, determine the equation of the regression line and correlation coefficient. Test the slope of the regression model to determine whether there is a significant negative slope, use t test. Use Alpha =.05. Test also the overall model.
X 4 6 7 11 14 17 21
Y 18 12 13 8 7 7 4
- Develop the equation of the regression model for the following data. Comment on the regression coefficients. Determine the predicted value of y for x1 = 33, x2 = 29, and x3 = 13. Use F test of overall significance of the multiple regression model at alpha =0.05.
Y x1 x2 x3
114 21` 6 5
94 43 25 8
87 56 42 25
98 19 27 9
101 29 20 12
85 34 45 21
94 40 33 14
107 32 14 11
119 16 4 7
93 18 31 16
108 27 12 10
117 31 3 8
