Question: The population mean proportion is .80. We decide to sample the population by randomly selecting 40 items and computing sample proportions. a. Can we use

The population mean proportion is .80. We decide to sample the population by randomly selecting 40 items and computing sample proportions.
a. Can we use the normal distribution to approximate the distribution of sample proportions? Why?
b. What is the standard error of this distribution?
c. Applying the empirical rule, approximately 95% of sample proportions are between what values?

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