Table 5.  Number of Advisory Service Programs above Alternative Market Benchmark Prices, Corn, 1995 -1997
           
Number Proportion  
Number of of Programs of Programs
Market Benchmark/ Advisory above above Two-tail
Sample Period Programs Benchmark Benchmark Z-statistic p-value  
24-Month Average
1995 25 18 0.72 2.20 0.028 **
1996 26 10 0.38 -1.18 0.239
1997 23 10 0.43 -0.63 0.532
1995-1997 74 38 0.51 0.23 0.816
20-Month Average
1995 25 13 0.52 0.20 0.841
1996 26 10 0.38 -1.18 0.239
1997 23 15 0.65 1.46 0.144
1995-1997 74 38 0.51 0.23 0.816
12-Month Average
1995 25 2 0.08 -4.20 0.000 ***
1996 26 23 0.88 3.92 0.000 ***
1997 23 19 0.83 3.13 0.002 ***
1995-1997 74 44 0.59 1.63 0.104  
Note:  Three stars indicates significance at the 1% level, two stars indicates significance at the 5% level, and one star indicates significance at the 10% level.