Coral city has a beltway which circles the city

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Reference no: EM13721812

Coral City has a beltway which circles the city.The City Council is concerned about the mean population speed of the cars on that beltway.Find the sample size if the City Council wants to estimate the mean speed within 1 mile per hour with 95% confidence.It is known from previous studies that the standard deviation is equal to 8 miles per hour.

Reference no: EM13721812

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