ANOVA: Single factor  
Item  Sample size  Average (t/ha/yr)  Variance  Value 
Soil loss by SOLCY model  30  117.55  39,526.18 

Soil loss using GIS  30  113.76  34,313.79 

Significance level (α) 


 0.050 
F 


 0.006 
Critical value of F (F_{crit}) 


 4.007 
Pearson correlation 


 0.939 
Null hypothesis: H0 = Population means are equal; Alternative hypothesis: H1 = Population Means are different; Because F < Fcrit, the null hypothesis is accepted [55] . 