Table 16 . --Chi-sguare test across diameter classes for final conversion model, developed using 



the expanded data set, without data from subplot 13 



Diameter 

 class 



Number of trees 

 in class 



Actual 

 conversion 



Predicted 

 conversion 



Chi -square 

 value 



4 - 9 

 10 - 11 

 12 - 13 



14 



15 



16 



17 



18 



19 



20 



21 



22 



23 



24 



25 



26 



27 



28 



29+ 



1 ,486 

 317 

 228 

 103 

 99 

 91 

 91 

 93 

 100 

 87 

 79 

 74 

 64 

 47 

 42 

 32 

 24 

 15 

 19 



0.00 

 



1 .00 

 4.00 

 1.00 

 6.00 

 1.00 

 4.00 

 4.00 

 2.00 

 5.00 

 4.00 

 8.00 

 1 .00 

 6.00 

 4.00 

 5.00 

 4.00 

 5.00 



1.33 

 .94 

 1 .39 

 1.06 

 1.36 

 1 .75 

 2.43 

 2.81 

 4.03 

 4.70 

 4.87 

 5.29 

 6.17 

 5.21 

 5.69 

 5.13 

 4.13 

 3.58 

 4.32 



1.3 

 .9 

 .1 



8.1 

 .1 

 10.3 

 .8 

 .5 







1.6 







.3 

 .5 

 3.4 







.2 

 .2 

 .1 

 .1 



Chi-square statistic = 28.7 



22 



