The lengths of pregnancies in a small rural village are normally
distributed with a mean of 265 days and a standard deviation of 16
days.
In what range would you expect to find the middle 95% of most
pregnancies?
Between and .
If you were to draw samples of size 59 from this population, in
what range would you expect to find the middle 95% 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.
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