Single proportion test
 Data     : diamonds
 Variable : cut
 Null hyp.: the proportion of  in cut = 0.5
 Alt. hyp.: the proportion of  in cut not equal to 0.5
 
 prop chisq.value p.value df 2.5% 97.5% ns    n
 0        3000  < .001  1    0 0.001  0 3000
