Rh Positive The proportion of individuals with an Rh-positive blood type is 85%. You...

Rh Positive 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 distribution 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?