A recent harris poll on green behavior showed that 25 of, Ask an Expert

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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) What are the values of "Mhu p" & "Standard Deviation p" (site won't allow symbos)

(B) Is it appropriate to approximate the p distribution with a normal distribution ? Explain.

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Category:- Statistics and Probability
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