Find the confidence interval specified.
30 people are selected randomly from a certain town. If their mean age is 32.2 and

find a 95% confidence interval for the true mean age, μ, of everyone in the town.
◦ 30.21 to 34.19
◦ 29.17 to 35.23
◦ 29.16 to 35.24
◦ 28.10 to 36.30