EBK BASIC BUSINESS STATISTICS
EBK BASIC BUSINESS STATISTICS
14th Edition
ISBN: 9780134685168
Author: STEPHAN
Publisher: YUZU
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Chapter 7, Problem 14PS

A political pollster is conducting an analysis of sample results in order to make predictions on election night. Assuming a two-candidate election, if a specific candidate receives at least 55 % of the vote in the sample, that candidate will be forecast as the winner of the election , if you select a random sample of 100 voters, what is the probability that a candidate will be forecast as the winner when

a. the population percentage of her vote is 50.1 % ?

b. the population percentage of her vote is 60 % ?

c. the population percentage of her vote is 49 % (and she will actually lose the election)?

d. If the sample size is increased to 400, what are your answer to (a) through (c)? Discuss.

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EBK BASIC BUSINESS STATISTICS

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