The New York City school board wants to estimate the mean sizeof AP statistics classes in New York City high schools. The board obtained the following random sample of AP statistics class sizes:24 29 29 23 25 24 33 26 24 29 27 26

22 32 24 21 19 29 31 26 29 31 16

Question 1. Use the data above to construct a90% confidence interval for the mean class size. (calculateyand s to 3 decimal places).

lower bound of confidence interval

upper bound of confidence interval

Question 2. Mark the following statement as true or false:The probability is0.90that the mean sizeof high school classes is contained in the interval calculated above.One submission ONLY; no exceptions.

True

False