The proportion of individuals with an Rh-positive blood type is 85%. You have a random sample of

Question:

The proportion of individuals with an Rh-positive blood type is 85%. You have a random sample of n = 500 individuals.
a. What are the mean and standard deviation of , the sample proportion with Rh-positive blood type?
b. Is the of approximately normal? Justify your answer.
c. What is the probability that the sample proportion exceeds 82%?
d. What is the probability that the sample proportion lies between 83% and 88%?
e. 99% of the time, the sample proportion would lie between what two limits?
Distribution
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