Suppose that the mean annual cost of automobile insurance in NC is $989 with standard deviation...

Suppose that the mean annual cost of automobile insurance in NC is $989 with standard deviation $225. What is the probability that the average cost for a sample of 50 NC automobile insurance policies is within $35 of the average annual cost for all policies? (4 decimal places). Find answer on statcrunch

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orchestra answered 1 year ago

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