SOLUTION: The growing seasons for a random sample of 35 U.S. cities were recorded, yielding a sample mean of 190.7 days and the population standard deviation of 54.2 days. Estimate the true
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-> SOLUTION: The growing seasons for a random sample of 35 U.S. cities were recorded, yielding a sample mean of 190.7 days and the population standard deviation of 54.2 days. Estimate the true
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Question 1193227: The growing seasons for a random sample of 35 U.S. cities were recorded, yielding a sample mean of 190.7 days and the population standard deviation of 54.2 days. Estimate the true mean population of the growing season with 95% confidence.
You can put this solution on YOUR website! 95% half-interval is z(0.975)*sigma/sqrt(n)=1.96*54.2/sqrt(35)=17.96 days
if I round to 18.0 days
(172.7, 208.7) days is the 95% interval.
