Use the BINOMIAL(P=value) option in the TABLE statement of PROC FREQ to get an asymptotic test as well as asymptotic and exact confidence intervals for a binomial probability. Use the P= suboption to test that the binomial probability is equal to a value other than 0.5. Adding the BINOMIAL option in the EXACT statement gives an exact test.

For example, the following statements show how to test that an observed proportion, 7/13, is equal to 0.5 and to 0.6:

    data a;
      x=1; f=7; output;
      x=2; f=6; output;
      run;
    proc freq; 
      weight f;
      table x / binomial;
      run;
    proc freq; 
      weight f;
      table x / binomial(p=.6);
      run;

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