(Solved) (Latest ver. Aug 2020) - You are to conduct a sample survey to determine the mean family income in a rural area of central Florida.
You are to conduct a sample survey to determine the mean family income in a rural area of central Florida. The question is, how many families should be sampled? In a pilot sample of 10 families, the standard deviation of the sample was $500. The sponsor of the survey wants you to use the 95 percent confidence level. The estimate is to be within $100. How many families should be interviewed?
This question was answered on: Sep 16, 2020
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