From 1975 through 2016, the mean gain of the Dow Jones Industrial Average was 456. A random
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From 1975 through 2016, the mean gain of the Dow Jones Industrial Average was 456. A random sample of 32 years is selected from this population. What is the probability that the mean gain for the sample was between 200 and 500? Assume σ = 1215.
Find the indicated probability and interpret the results.
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Related Book For 
Elementary Statistics Picturing The World
ISBN: 9780134683416
7th Edition
Authors: Ron Larson, Betsy Farber
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