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#1
Historically, the proportion of adults over the age of 24 who smoke has been estimated to be .30. You want to take a sample to estimate the current proportion of adults over the age of 24 who smoke within 3% at 95% accuracy. Whaen you completed the sample you found that 114 of those adults sampled over the age of 24 smoked. Develop a 95% confidence interval fro the current proportion of adults over the age of 24 who smoke.

please help me i am clueless on this problem

I'm not sure of what formula to even use please help me