Re: Shan's evaluation Do tell
Posted by Roger Hunter on January 04, 2004 at 17:09:01:

Petra;

here's the summary of the chi-square test info.


AV. PROB. O E (O-E)^2 (O-E)^2/E
0.968941364 86 83.328 7.13 0.08
0.848842105 36 32.256 14.02 0.43
0.759181818 28 25.053 8.68 0.35
0.650666667 12 11.712 0.08 0.01
0.553842105 12 10.523 2.18 0.21
0.450434783 9 10.36 1.85 0.18
0.3458 15 8.645 40.39 4.67
0.251043478 6 5.774 0.05 0.01
0.146112903 16 9.059 48.18 5.32
0.038680641 5 3.01709 3.93 1.30

X2 = 12.56
with 10 degrees of freedom

I evaluated all his predictions, took the probability for each and logged hit or miss.

Then I sorted the list into order by probability, grouped it by tenths, took averages of each group and multiplied the counts by that to get expected values.

Chi-square is straightforward after that.

If there's a better way, let me know.

Roger


Follow Ups:
     ● Try again repeat - Roger Hunter  17:40:53 - 1/4/2004  (20905)  (0)
     ● Try again. - Roger Hunter  17:37:00 - 1/4/2004  (20903)  (0)
     ● Formatting problem fixed - Roger Hunter  17:31:17 - 1/4/2004  (20902)  (1)
        ● Thank You Roger - Petra Challus  19:17:26 - 1/4/2004  (20912)  (0)