38. We need an estimate of the mean acreage of Canadian fanns. We plan to measure acreage...

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38. We need an estimate of the mean acreage of Canadian fanns. We plan to measure acreage for a random sample of 100 farms. Residis from an earlier study suggest that 200 acres is a reasonable guess for the standard deviation of farm size. Find the probability that the sample mean acreage falls within 10 acres of the population mean acreage.

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