Solve these questions please

We want a 95% confidence interval for the proportion of burials (in Durham city cemeteries from 1910 to 1920) involving people under the age of 20. We collect the following sample of ages for that era: 2,58,78,6,0,9,0,62,0,68,71,70,73 We will use the left edge of the right tail that has area The left edge of this tail is How many in this sample were younger than 20? Find the sample proportion for people younger than 20: The margin of error is The 95% 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