Question

In: Statistics and Probability

Using the GDP Data do the following: Generate the best fit model (regression) Generate the specific...

Using the GDP Data do the following:

  • Generate the best fit model (regression)
  • Generate the specific regression form
  • Explain any dummy variables created
  • Explain any time variables created
  • Discuss the significance of all variables
  • Generate and discuss the residual plot
  • 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

Solutions

Expert Solution

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.


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