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July 4, 2015

Homework Help: statistics

Posted by rich on Thursday, December 29, 2011 at 2:48pm.

Use the given confidence level and sample data to find a confidence interval for the population standard sigma. Assume that a simple random sample has been selected from a population that has a normal distribution. salaries of college graduates who took a geology course in college 98% confidence; n= 91, x= $70,200, s=$19,912

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