Data was gathered to see if the distance (in miles) of an airplane flight could be used to predict the price of a ticket (in dollars). The following regression output was obtained. Interpret the Slope. Is the model valid? How do you know:

Regression Statistics Multiple R R Square Adjusted R Square Standard Error Observations ANOVA Regression Residual Total Intercept Distance 0.5889 0.3468 0.3184 48.7124 25 df 1 23 24 SS MS 28976.2925 28976.29254 54576.7475 2372.902064 83553.04 Coefficients Standard Error 153.0677 0.0457 18.0775 0.0131 t Stat 8.4673 3.4945 F 12.2113 P-value 1.59751E-08 0.0020 Significance F 0.001954213 Lower 95% 115.6715897 0.0186