Solve these questions please

We want a 85% confidence interval for the fraction of mothers who smoke. We collect a random sample of 75 mothers and find 27 are smokers. Find the sample proportion of mothers who smoke: We will use the left edge of the right tail that has area The left edge of this tail is The margin of error is The 85% confidence interval is [ IMPORTANT: This problem is only intended to teach you the procedure for finding a confidence interval for proportion. When working this problem, ignore the fact that the sample may be too small and just pretend the procedure for finding a confidence interval works