Refer to Exercise 2.27 and the data on the consumer price index for various cities. Find the
Question:
(a) Find the sample mean and standard deviation of these differences.
(b) What proportion of the increases lie between ± 25?
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a b x 21917 and s 540 Since X 2s 2191...View the full answer
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Related Book For 
Statistics Principles And Methods
ISBN: 9780470904114
7th Edition
Authors: Richard A. Johnson, Gouri K. Bhattacharyya
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