Good morning :) this is a test and I have 30 mintues.

The lengths of pregnancies in a small rural village are normally distributed with a mean of 269 days and a standard deviation of 15 days. a) In what range would you expect to find the middle 50% of most pregnancies? Between and b) If you were to draw samples of size 40 from this population, in what range would you expect to find the middle 50% of most averages for the lengths of pregnancies in the sample? Between and Enter your answers as numbers. Your answers should be accurate to one decimal places