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QUESTION
The growing seasons for a random sample of 35 U. cities were recorded,yielding a sample mean of 190.7 days and a sample standard deviation of 54.2...
The growing seasons for a random sample of 35 U.S. cities were recorded,yielding a sample mean of 190.7 days and a sample standard deviation of 54.2 days. Estimate the true mean population of the growing season with 95% confidence.
