A recent Harris Poll on green behavior showed that 25% of adults often purchase used items instead

Question:

A recent Harris Poll on green behavior showed that 25% of adults often purchase used items instead of new ones. Consider a random sample of 75 adults. Let ^p be the sample proportion of adults who often purchase used instead of new items.
(a) Is it appropriate to approximate the ^p with a normal Explain.
(b) What are the values of μ^p and σ^p?
Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...