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QUESTION
We need an estimate of the mean acreage of Canadian farms. We plan to measure acreage for a random sample of 100 farms.
We need an estimate of the mean acreage of Canadian
farms. We plan to measure
acreage for a random sample of 100 farms. Results
from an earlier study suggest that
200 acres is reasonable guess for the standard devi
ation of farm size. Find the
probability that the sample mean acreage falls with
in 10 acres of the population mean
acreage.
