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Table 9. Regression Analysis of Age {years) versus Size (Height) for <br />Gambel Oak <br />~.J <br />Data <br />i Xi (Height-Inches) <br />Height-cm <br />Yi (Age-Years) <br />1 78 198.1 41 <br />2 59 149.9 27 <br />3 75 190.5 29 <br />4 142 360.7 63 <br />5 148 375.9 63 <br />6 84 213.4 32 <br />7 136 345,4 54 <br />8 46 116,8 18 <br />9 92 233.7 30 <br />10 108 274.3 75, <br />11 40 101.6 9 <br />1L 66 167.6 15 <br />13 34 86.4 7 <br />14 14 35.6 5 <br />15 112 284.5 30 <br />16 58 147.3 11 <br />17 28 71.1 10 <br />18 28 71.1 8 <br />19 62 157.5 17 <br />Averages 74.2 188.5 213.6 <br />Analysis of Variance: Linear Pegression of. Y on X <br />Source SS DF D7S F Ratio <br />Regression 6556.187 1 6556.187 65.55 <br />Residual 1700.234 17 100.014 <br />Zbtal Corr. 8256.421 18 <br />F (1, 17) = 8.28 a = 0.01 <br />2 <br />R = 0.794 = 79.40 <br />Y = 6.626 + 0.475X <br /> <br />-92- <br />