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zmudasam zmudasam
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4 years ago
A poll of 500 citizens of Normal Illinois showed that 61% favored strict enforcement of speed limits with a margin of error of 4%.  A second poll of 482 citizens of the same town showed that 37% favored strict enforcement of speed limits. Based on the results of the two polls, one may conclude that

▸ the percent of the population that favors strict enforcement of speed limits is
49% ± 8%.

▸ there are definite errors in one of the polls.

▸ one or both of the samples may have been unlikely samples from the population.

▸ the percent of the population that favors strict enforcement of speed limits is
49% ± 4%.
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Statistical Reasoning for Everyday Life

Statistical Reasoning for Everyday Life


Edition: 5th
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NicoleLoveNicoleLove
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4 years ago
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