Question
A nonprofit organization commissions a study to find the average cost of a college textbook. After looking at 121 college textbooks, it finds that the
A nonprofit organization commissions a study to find the average cost of a college textbook. After looking at 121 college textbooks, it finds that the average cost is $52.00, with a standard deviation of $5.50. What is the 95% confidence interval for the average cost of a college textbook?
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Concepts In Set Theory
Authors: Mofidul Islam
1st Edition
9353146232, 9789353146238
