The Kansas Tax Commission recently conducted a study to determine whether there is a difference in median deductions taken for charitable contributions depending on whether a tax return is filed as a single or a joint return. A random sample from each category was selected, with the following results:

Based on these data, what should the tax commission conclude? Use an α = 0.05 level.

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Joint Single n-6 Sum of ranks 43 Sum of ranks 62 i2