Question: =+dummy variables. Dependent variable is: LogPassengers R squared = 92.4% R squared (adjusted) = 91.9% s = 0.0358 with 194 - 13 = 181 degrees

=+dummy variables.

Dependent variable is: LogPassengers R squared = 92.4% R squared (adjusted) = 91.9%

s = 0.0358 with 194 - 13 = 181 degrees of freedom Variable Coeff SE(Coeff) t-ratio P-value Intercept 5.64949 0.0101 558 60.0001 Years since ‘90 0.024929 0.0006 45.2 60.0001 Feb -0.013884 0.0127 -1.10 0.2747 Mar 0.048429 0.0127 3.82 0.0002 Apr 0.049028 0.0125 3.93 0.0001 May 0.066227 0.0125 5.30 60.0001 Jun 0.082862 0.0127 6.54 60.0001 Jul 0.095295 0.0127 7.52 60.0001 Aug 0.121779 0.0127 9.61 60.0001 Sep 0.029382 0.0127 2.32 0.0216 Oct 0.049596 0.0127 3.91 0.0001 Nov 0.039649 0.0127 3.13 0.0020 Dec 0.043545 0.0127 3.44 0.0007

a) Interpret the slope.

b) Interpret the intercept.

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