Karen 1wants to advertise how many chocolate chips are in each Big Chip cookie at her bakery. She randomly selects a sample of 31 cookies and finds that the number of chocolate chips per cookie in the sample has a mean of 11.5 and a standard deviation of 3.6+. |lI'III'hat is the 99% confidence interval for the number of chocolate chips per cookie for Big Chip cookies? Enter 1your answers accurate to one decimal place {because the sample statistics are reported accurate to one decimal place]. DwC]