Can you please explain how you found the answer

A study suggests that 25% of 25-year-olds have gotten married. You believe that this is incorrect and decide to collect your own sample for a hypothesis test. From a random sample of 25-year- olds in census data with size 776, you find that 22% of them are married. Conduct a hypothesis test to determine whether these data provide evidence that the proportion of 25-year-olds that are married is different than 25%