The indiana department of transportation wishes to survey

Reference no: EM13636054

The Indiana Department of Transportation wishes to survey state residents to determine what proportion of the population would like to increase the statewide highway speed limit to 75 mph from 65 mph. How many residents do they need to survey if they want to be at least 99% confident that the sample proportion is within ±0.05 of the true proportion?

Reference no: EM13636054

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