Predict the election. Just before a presidential election, a national opinion poll increases the size of its
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Predict the election. Just before a presidential election, a national opinion poll increases the size of its weekly sample from the usual 1000 people to 52 CHAPTER 3 What Do Samples Tell Us?
4000 people. Does the larger random sample reduce the bias of the poll result?
Does it reduce the variability of the result?
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Related Book For 
Statistics Concepts And Controversies
ISBN: 9781429277761
7th Edition
Authors: David S Moore, William I Notz
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