Determine the probability that the next customer will spend

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Grocery store receipts show that customer purchases have a skewed distribution with a mean of $32 and a standard deviation $20.

a. Explain why you cannot determine the probability that the next customer will spend at least $40.

b. Estimate the probability that the next 50 customers will spend an average of at least $40.

c. Based on the answer in part (b), is it likely that the next 50 customers will spend an average of at least $40?

 

Reference no: EM13188339

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