The lengths of pregnancies in a small rural village are normally distributed with a mean of 269 days and a standard deviation of 12 days.

In what range would you expect to find the middle 50% of most pregnancies?

Between= and= .

If you were to draw samples of size 30 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 1 decimal places.

Submit Question

Question 6