Table 6.  Number of Market Advisory Services above Alternative Market Benchmark Prices, Soybeans, 1995 -1998
             
Number Proportion
Number of of Services of Services
Market Benchmark/ Advisory above above Two-tail
Sample Period Services Benchmark Benchmark Z-statistic p-value  
24-Month Average sigp one-tail
1995 25 21 0.84 3.40 0.00 *** 0.84 0.10 0.9997 0.0003 0.9999
1996 24 19 0.79 2.86 0.00 *** 0.79 0.10 0.9979 0.0021 0.9992
1997 21 13 0.62 1.09 0.28 0.62 0.11 0.8624 0.1376 0.9054
1998 22 7 0.32 -1.71 0.09 * 0.32 0.11 0.0440
1995-1998 92 60 0.65 2.92 0.00 *** 0.65 0.05 0.9982 0.0018 0.9988
20-Month Average
1995 25 18 0.72 2.20 0.03 ** 0.72 0.10 0.9861 0.0139 0.9927
1996 24 13 0.54 0.41 0.68 0.54 0.10 0.6585 0.3415 0.7294
1997 21 14 0.67 1.53 0.13 0.67 0.11 0.9367 0.0633 0.9608
1998 22 17 0.77 2.56 0.01 *** 0.77 0.11 0.9947 0.0053 0.9978
1995-1998 92 62 0.67 3.34 0.00 *** 0.67 0.05 0.9996 0.0004 0.9997
16-Month Average
1995 25 14 0.56 0.60 0.55 0.56 0.10 0.7257 0.2743 0.7878
1996 24 13 0.54 0.41 0.68 0.54 0.10 0.6585 0.3415 0.7294
1997 21 20 0.95 4.15 0.00 *** 0.95 0.11 1.0000 0.0000 1.0000
1998 22 20 0.91 3.84 0.00 *** 0.91 0.11 0.9999 0.0001 1.0000
1995-1998 92 67 0.73 4.38 0.00 *** 0.73 0.05 1.0000 0.0000 1.0000
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.