Displaying 1 result from an estimated 1 matches for "prob_of_sucess".
2004 Oct 06
0
2x2 test: total confusion.
...xed.
I know how many balls of each color there are - so that marginal is fixed.
I know the total picks.
I can test the 'association' between Picker p and color c by doing the
following...
prob_of_pick(p)  = picks made by p  / total picks
prob_of_color(c) = balls of color c / total picks 
prob_of_sucess = prob_of_pick_of_color(pc) = 
  picks made by p  / total picks *
  balls of color c / total picks
USE BINOMIAL DISTRIBUTION
  n = total picks
  k = number of balls of color c picked by picker p
  p = prob_of_pick_of_color(pc)
Significance of this particular observation = 
if( k < n*p ){...