Question: Problem 4 (7 points) Suppose an individual spent an average of $69 monthly on cellphone bills. Assume that the popu- lation standard deviation is $50.

Problem 4 (7 points) Suppose an individual spent an average of $69 monthly on cellphone bills. Assume that the popu- lation standard deviation is $50. If you take a simple random sample of 10,000 people, what is the probability that the average amount exceeds $70

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