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Nonparametric tests generally are more powerful than parametric tests when normality cannot be assumed.
Fair Credit Billing Act
A U.S. federal law designed to protect consumers from unfair billing practices and to provide a mechanism for addressing billing errors on credit accounts.
Disputed Amount
The portion of a bill or invoice that is not agreed upon by the parties involved, leading to a potential conflict or claim.
Credit Card Bill
A statement issued monthly by the credit card company that details the transactions, outstanding balance, and minimum payment due by the cardholder.
Billing Statement
A summary of transactions, payments, credits, and fees on an account over a specific period, typically issued periodically by creditors to debtors.
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