30 An estimate is needed of the mean acreage of farms in Canada. The estimate must be...
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30 An estimate is needed of the mean acreage of farms in Canada. The estimate must be correct to within 25 acres with probability .95. A preliminary study suggests that 200 acres is a reasonable guess lor the standard deviation of farm size. How large a sample of farms is required?
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Statistical Methods For The Social Sciences
ISBN: 9780135265260
3rd Edition
Authors: Alan Agresti, Barbara Finlay
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