One measure of the development of a country is the Human Development Index (HDI). Life expectancy, literacy,
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(a) Obtain a 95% confidence interval for the mean HDI when Internet usage per 100 persons is 22. Compare the width of the interval with that of the interval in Example 10.
(b) Obtain a 95% prediction interval for a single country with Internet usage 22 per one hundred persons. Interpret.
(c) Does your analysis show that Internet usage causes HDI to increase?
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a b c The expected value of HDI corresponding to x 22 internet user...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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