The Arizona Department of Transportation wishes to survey state residents to determine what proportion of the population would like to increase statewide highway speed to 75 from 65 mph. At least how many residents do they need to survey if they want to be at least 99% confident that the sample proportion is within 0.04 of the true proportion? i

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter12: Angle Relationships And Transformations
Section: Chapter Questions
Problem 17PTTS
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The
Arizona Department of Transportation wishes to survey state residents to determine what proportion of the population would
like to increase statewide highway speed to 75 from 65 mph. At least how many residents do they need to survey if they want to be at
least 99% confident that the sample proportion is within 0.04 of the true proportion?
i
Transcribed Image Text:The Arizona Department of Transportation wishes to survey state residents to determine what proportion of the population would like to increase statewide highway speed to 75 from 65 mph. At least how many residents do they need to survey if they want to be at least 99% confident that the sample proportion is within 0.04 of the true proportion? i
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