Problema Solution
the mean height of women in a country (ages 20-29) is 63.6 inches. A random sample of 50 women in this age group is selected. What is the probability mean height for the sample is greater than 64? Assume standard deviation = 2.64
Answer provided by our tutors
We will assume that we have a normal distribution
Number of scores to be greater than 64 is:
P(X > 64) = 1 - P(X < 64) = P(Z < (64 - 63.6)/2.64) = P(Z < 0.15152) = 0.56022 or 56%.