Based on past data, the owner of a store believes that 83% of customers who walk in his store will make a purchase.Say, a random sample of 63 customers walks in his store and 68% of these made a purchase. What is the standard deviation of the sampling distribution of the sample proportion of customers who walk in and make a purchase in this store?

a)0.00

b)0.05

c)0.06

d)0.00

e)-316.96

Answer rating: 100% (QA)

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