group  Frequency  Percent  Cumulative Frequency 
Cumulative Percent 

aa  207  79.01  207  79.01 
ca  55  20.99  262  100.00 
Binomial Proportion for group = aa 


Proportion  0.7901 
ASE  0.0252 
Type  95% Confidence Limits  

AgrestiCoull  0.7366  0.8352 
Test of H0: Proportion = 0.422  

ASE under H0  0.0305 
Z  12.0634 
Onesided Pr > Z  <.0001 
Twosided Pr > Z  <.0001 