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REGRESSION ANALYSIS <br />Seneca Coal Company <br /> Data Statisics <br />N <br />50.0 Max_PPV Min_PPV <br />7.44 D.135 ~ Max SD <br />42 Min_SD <br />6 <br /> Calculated Sums <br />Sum_X <br />145.0. Sum_Y Sum_X2 <br />6.976 436.096 Sum_Y2 <br />64.913 Sum_XY <br />-10.0 <br /> Sums Of Squares <br />SS_X <br />15.60 SS_Y SS XY <br />63.94 -30.20 SumXSumY <br />1011.498 (SumX)2 <br />21024.665 <br /> Calculated Means 8 Calulated Coefficients <br />X_Bar <br />2.900 Y_Bar <br />0.140 a Kso Kee Kse <br />5.75 315.0 477.5 567.2 K~ <br />175.0 Bso <br />-1.94 <br /> Sample Standard Deviation & Coefficient of Correlation <br />S <br />0.338 Sez <br />5.488 r <br />-0.956 rz <br />0.914 <br />The 95°~ Confidence Level E nation <br />PPV= 477.5 X (SD)^ ~~'e< <br /> <br />~~~ <br />r <br />I <br />• Prepared by Matheson ~g Consultants 1/27/98 • <br />