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    Sample size

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    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% confidence interval. The estimate is to be within $100. How many families should be interviewed?

    © BrainMass Inc. brainmass.com June 3, 2020, 7:14 pm ad1c9bdddf
    https://brainmass.com/statistics/confidence-interval/sample-size-91151
    $2.19

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