In: Statistics and Probability
Using the GDP Data do the following:
GDP | C | I | G |
822.2 | 625.7 | 93.6 | 110.1 |
751.5 | 592.3 | 62.5 | 121.3 |
703.6 | 574.3 | 39.2 | 126.6 |
611.8 | 523.0 | 11.8 | 122.4 |
603.3 | 511.0 | 17.5 | 118.0 |
668.3 | 546.9 | 31.6 | 133.0 |
728.3 | 580.6 | 58.4 | 137.0 |
822.5 | 639.6 | 74.9 | 158.9 |
865.8 | 663.5 | 93.6 | 153.2 |
835.6 | 652.6 | 61.9 | 164.6 |
903.5 | 689.0 | 79.6 | 179.7 |
980.7 | 724.9 | 110.9 | 182.4 |
1148.8 | 776.7 | 135.4 | 303.0 |
1360.0 | 758.3 | 71.6 | 711.1 |
1583.7 | 779.1 | 42.3 | 1059.9 |
1714.1 | 801.7 | 52.2 | 1195.6 |
1693.3 | 851.8 | 69.0 | 1041.0 |
1505.5 | 956.9 | 175.0 | 359.7 |
1495.1 | 976.4 | 168.6 | 307.1 |
1560.0 | 998.1 | 215.3 | 328.9 |
1550.9 | 1025.3 | 164.3 | 367.3 |
1686.6 | 1090.9 | 232.5 | 367.4 |
1815.1 | 1107.1 | 233.2 | 500.0 |
1887.3 | 1142.4 | 211.1 | 605.1 |
1973.9 | 1197.2 | 221.0 | 647.5 |
1960.5 | 1221.9 | 210.8 | 602.9 |
2099.5 | 1310.4 | 262.1 | 580.4 |
2141.1 | 1348.8 | 258.6 | 580.8 |
2183.9 | 1381.8 | 247.4 | 606.7 |
2162.8 | 1393.0 | 226.5 | 626.2 |
2319.0 | 1470.7 | 272.9 | 661.4 |
2376.7 | 1510.8 | 272.8 | 661.3 |
2432.0 | 1541.2 | 271.0 | 693.2 |
2578.9 | 1617.3 | 305.3 | 735.0 |
2690.4 | 1684.0 | 325.7 | 752.4 |
2846.5 | 1784.8 | 352.6 | 767.1 |
3028.5 | 1897.6 | 402.0 | 791.1 |
3227.5 | 2006.1 | 437.3 | 862.1 |
3308.3 | 2066.2 | 417.2 | 927.1 |
Generate the best fit model (regression)
SUMMARY OUTPUT | ||||||
Regression Statistics | ||||||
Multiple R | 0.99967511 | |||||
R Square | 0.999350325 | |||||
Adjusted R Square | 0.999294639 | |||||
Standard Error | 20.70268274 | |||||
Observations | 39 | |||||
ANOVA | ||||||
df | SS | MS | F | Significance F | ||
Regression | 3 | 23075070.98 | 7691690.326 | 17946.0361 | 8.0381E-56 | |
Residual | 35 | 15001.03755 | 428.6010728 | |||
Total | 38 | 23090072.02 | ||||
Coefficients | Standard Error | t Stat | P-value | Lower 95% | Upper 95% | |
Intercept | -4.107255539 | 18.0377833 | -0.227702899 | 0.821202195 | -40.72590242 | 32.51139134 |
C | 0.961003511 | 0.048690324 | 19.73705311 | 1.50263E-20 | 0.862156898 | 1.059850124 |
I | 1.613966923 | 0.164158805 | 9.831741416 | 1.31922E-11 | 1.280706832 | 1.947227015 |
G | 0.730060414 | 0.018998844 | 38.42656941 | 3.25576E-30 | 0.691490709 | 0.768630119 |
Generate the specific regression form
Y=-4.107255539 + 0.961003511(C) +1.613966923(I) +0.730060414(G)
Explain any dummy variables created
No dummy variables were created
Explain any time variables created
No time variables were created
Discuss the significance of all variables
p-values of all the variables C, I and G are lower than 0.05. This means all the variables are significant.