A newspaper article indicates that an estimate of the unemployment rate involves a survey of 47,000 people.

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A newspaper article indicates that an estimate of the unemployment rate involves a survey of 47,000 people. If the reported unemployment rate must have an error no larger than 0.2 percentage points and the rate is known to be about 8%, find the corresponding confidence level.
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Elementary Statistics

ISBN: 9780321225979

3rd Canadian Edition

Authors: Mario F. Triola

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