Question: Suppose TurboTax a developer of tax preparation software would like

Suppose TurboTax, a developer of tax preparation software, would like to determine if the median state tax refund in 2013 differs among various regions of the country. A random sample of taxpayer refunds from Maryland, California, Louisiana, and Ohio were recorded and are as follows. These data can also be found in the Excel file TurboTax.xlsx.
Perform a hypothesis test using α = 0.05 to determine if there is a difference among the median state tax refunds for taxpayers in these four states.

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