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HW4 - RyanScarff QmethHW4 Chap11#3 Airline Southwest...

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Ryan Scarff 2/3/2010 Qmeth HW 4 Chap 11 #3 Airline One Month Entire Year Southwest 87.0 82.5 Northwest 86.0 81.9 Continental 85.3 79.6 American 84.7 78.2 USAir 82.4 81.1 Alaska Air 81.4 76.3 TWA 81.0 75.1 America West 80.5 78.0 United 79.2 80.0 Delta 75.2 78.7 O N E Y E A R ONE MONTH Part B Correlation Coefficient 0.47 Part C Coefficient of Determination 0.22 This represents the proportion of explained variance in relation to the  Part D r 0.47 74.0 76.0 78.0 80.0 82.0 84.0 86.0 88.0 70.0 72.0 74.0 76.0 78.0 80.0 82.0 84.0 Colum
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slope b 0.31 intercept a 53.9 Equation Y=53.9+.306X Part E predicted 78.81 residual -2.51 Part F Standard Error of Estimate 2.22 :measure of the accuracy of predictions #4 NOT PART D A Fund Net Asset value Market Price 9.5 8.75 12.72 12.5 13.89 14.25 9.44 10.19 12.54 11.88 7.38 7 9.18 8.75 8.1 7.5 9.84 9.13 12.95 12.88 13.47 12.13 8.19 8.63 8.17 9 Correlation Coefficient Squared 0.96 The relationship is very strong. B Variance Y 5.18 Variance X 5.49 Average Y 10.2 AVERAGE X 10.41 These figures, combined with the high correlation coefficient display  the fact that the market prices do vary significantly and still maintain  high correlation suggesting they are not randomly assigned.
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