Predict the election Just before a presidential election,
Chapter 5, Problem 5.36(choose chapter or problem)
Predict the election Just before a presidential election, a national opinion poll increases the size of its weekly sample from the usual 1500 people to 4000 people. (a) Does the larger random sample reduce the bias of the poll result? Explain. (b) Does it reduce the variability of the result? Explain.
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