SOLUTION: The mean height of women in a country​ (ages 20-​29) is 63.7 inches. A random sample of 75 women in this age group is selected. What is the probability that the mean he
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Question 1121242: The mean height of women in a country (ages 20-29) is 63.7 inches. A random sample of 75 women in this age group is selected. What is the probability that the mean height for the sample is greater than 64 inches? Assume standard deviation is 2.92. Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! z test since std dev known
z=(x-mean)/sd/sqrt(n)
>(64-63.7)/2.92/sqrt(75)
>0.3*sqrt(75)/2.92
>0.89
That is a probability of 0.1867
