SOLUTION: The mean height of women in a country (ages 20minus−29) is 63.8 inches. A random sample of 55 women in this age group is selected. What is the probability that the mean heig

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Question 1121050: The mean height of women in a country (ages 20minus−29) is 63.8 inches. A random sample of 55 women in this age group is selected. What is the probability that the mean height for the sample is greater than 64 inches? Assume σ=2.852.85.
The probability that the mean height for the sample is greater than 64 inches is
(Round to four decimal places as needed.)
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
z>(64-63.8)/2.85/sqrt (55), the SE of the sample is sigma/sqrt(n)
>0.2*sqrt(55)/2.85=+0.52
probability z>0.52 is 0.3015.