A national survey of a large supermarket chain is undertaken. Data are collected for the price of
Question:
A national survey of a large supermarket chain is undertaken. Data are collected for the price of a particular brand of natural yoghurt. The data are shown below. Assuming the prices of natural yoghurt are normally distributed, find a 95% confidence interval for the population variance of prices for this particular brand of natural yoghurt.
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5.50 4.50 4.90 5.25 5.00 5.30 5.50 5.30 4.99 4.50 5.25 5.00 5.30 5.25 4.75 5.50 5.25 4.99 5.60 4.75 5.20 4.99 5.30 5.35 4.95 5.25 5.25 4.75
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Related Book For
Business Analytics And Statistics
ISBN: 9780730363330
1st Edition
Authors: Ken Black, John Asafu Adjaye, Paul Burke, Nelson Perera, Carl Sherwood, Saleh A. Wasimi
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