Single proportion test
 Data     : diamonds
 Variable : clarity
 Null hyp.: the proportion of IF in clarity = 0.05
 Alt. hyp.: the proportion of IF in clarity not equal to 0.05
 
 prop chisq.value p.value df  2.5% 97.5% ns    n
 0.033      18.253  < .001  1 0.027  0.04 99 3000
