Need quick reply

#1
If I have three categories (yes, no and don't know) for a single variable (say Effective_policies_in_hospital) with 50% 25% and 25% respectively... I am only interested to test whether this 50% is significant... Can I run prtest from stata by coding these three categories 1 0 0 and testing it against hypothesized value of 0.25....

prtest Effective_policies_in_hospital==0.25