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Math / Excursions in Modern Mathematics: Pearson New International Edition 8 / Chapter 14 / Problem 20

Excursions in Modern Mathematics: Pearson New International Edition | 8th Edition | ISBN: 9781292022048 | Authors: Peter Tannenbaum

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Solved: Exercises 17 through 20 refer to the following story: The city of Cleansburg has

Chapter 14, Problem 20

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QUESTION:

Exercises 17 through 20 refer to the following story: The city of Cleansburg has 8325 registered voters. There is an election for mayor of Cleansburg, and there are three candidates for the position: Smith, Jones, and Brown. The day before the election a telephone poll of 680 randomly chosen registered voters produced the following results: 306 people surveyed indicated that they would vote for Smith, 272 indicated that they would vote for Jones and 102 indicated that they would vote for Brown.Do you think that the sampling error in this example wasdue primarily to sampling bias or to chance? Explain youranswer.

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QUESTION:

Exercises 17 through 20 refer to the following story: The city of Cleansburg has 8325 registered voters. There is an election for mayor of Cleansburg, and there are three candidates for the position: Smith, Jones, and Brown. The day before the election a telephone poll of 680 randomly chosen registered voters produced the following results: 306 people surveyed indicated that they would vote for Smith, 272 indicated that they would vote for Jones and 102 indicated that they would vote for Brown.Do you think that the sampling error in this example wasdue primarily to sampling bias or to chance? Explain youranswer.

ANSWER:

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Large sampling mistakes suggest that a study's sample did not reflect the total population. This frequently happens when samples are taken with bias, omitting some groups from the study's representation.

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