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Which of these tests is a nonparametric method to compare two or more populations when the samples are independent and the data are either ordinal or interval but not normal?
After-tax Cost
The expense of an investment or financial activity after accounting for taxes.
Tax Rate
The tax rate imposed by governmental authorities on the income of persons or businesses.
Coupon
The interest payment made to the bondholder during the life of the bond, expressed as a percentage of the bond's face value.
Pre-tax Cost
The cost of an investment or transaction before any taxes are considered or applied.
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