A random sample of size n 200 is taken from a
A random sample of size n=200 is taken from a population with population proportion p=0.75.
a. Calculate the expected value and the standard error for the sampling distribution of the sample proportion.
b. What is the probability that the sample proportion is between 0.70 and 0.80?
c. What is the probability that the sample proportion is less than 0.70?

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