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Mathematics, 17.01.2020 21:31 lilwon9933

Alarge company is considering opening a franchise in st. louis and wants to estimate the mean household income for the area using a simple random sample of households. based on information from a pilot study, the company assumes that the standard deviation of household incomes is σ = $7,200. of the following, which is the least number of households that should be surveyed to obtain an estimate that is within $200 of the true mean household income with 95 percent confidence?

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