The number of chocolate chips in an 18-ounce bag of Chips Ahoy! chocolate chip cookies is approximately normally distributed, with a mean of 1262 chips and a standard deviation of 118 chips,
according to a study by cadets of the U.S. Air Force Academy.
(a) Determine the 27th percentile for the number of chocolate chips in an 18-ounce bag of Chips Ahoy! cookies.
(b) Determine the number of chocolate chips in a bag of Chips Ahoy! that make up the middle 96% of bags.
(c) What is the interquartile range of the number of chips in Chips Ahoy! cookies?
Click here to view the standard normal distribution table (page 1)
Click here to view the standard normal distribution table (page 2).
(a) The 27th percentile for the number of chocolate chips in an 18-ounce bag of Chips Ahoy! cookies is 1,190 chocolate chips.
(Round to the nearest whole number as needed.)
(b) The number of chocolate chips in a bag of Chips Ahoy! that make up the middle 96% of bags is
(Round to the nearest whole number as needed. Use ascending order.)
chocolate chips.
