A national survey showed that a certain brand of cold cuts was priced, on average, at $1.15
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A national survey showed that a certain brand of cold cuts was priced, on average, at $1.15 per 100 g. Suppose a national survey of 23 retail outlets was taken and the price per 100 g of these cold cuts was ascertained. If the following data represent these prices, what is a 90% confidence interval for the population variance of these prices? Assume prices are normally distributed in the population.
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Related Book For 
Business Statistics For Contemporary Decision Making
ISBN: 9781119577621
3rd Canadian Edition
Authors: Ken Black, Ignacio Castillo
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