Karen wants to advertise how many chocolate chips (in grams) are in each Big Chip cookie at her bakery. She randomly selects a sample of 15 cookies and finds that the number of chocolate chips per...

Karen wants to advertise how many chocolate chips (in grams) are in each Big Chip cookie at her bakery. She randomly selects a sample of 15 cookies and finds that the number of chocolate chips per cookie in the sample has a mean of 90.6 and a standard deviation of 39.5. What is the 98% confidence interval for the number of chocolate chips per cookie for Big Chip cookies?