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(5 points) The average American woman has her first child at the age of =25. The population is
normally distributed with a standard deviation of =4.5 years. Your graduating class is a sample
from this population. Say your class has a size of n=50 people. What is the probability that your
class has an average of between 24 and 25 for the age of motherhood? [Hint: draw a picture of
the normal distribution.]

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  • 1. (5 points) The average American woman has her first child at the age of =25. The population is normally distributed with a standard deviation of =4.5 years. Your graduating class is a sample from this population. Say your class has a size of n=50 people. What is the probability that your class has an average of between 24 and 25 for the age of motherhood? [Hint: draw a picture of the normal distribution.]