please answer all 3 parts with explanation

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 1263 chips and a standard deviation of 11? chips (3) Determine the 26m percentile for the number of chocolate chips in a bag. (b) Determine the number of chocolate chips in a bag that make up the middle 95% of bags. (c) What is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies? (3) The 26th percentile for the number of chocolate chips in a bag of chocolate chip cookies is 1188' chocolate chips. (Round to the nearest whole number as needed.) (b) The number of chocolate chips in a bag that make up the middle 95% of bags is 1034' to 1492' chocolate chips. (Round to the nearest whole number as needed. Use ascending order) (c) The interquartile range of the number of chocolate chips is (Round to the nearest whole number as needed.)