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Which of the following tests is not a distribution-free test?
Company's Products
The goods and services that a company offers to consumers in the marketplace.
Detailed Report
A comprehensive document that provides an in-depth analysis or account of a specific subject or activity.
Secret Customers
Individuals employed to visit stores, restaurants, and other businesses anonymously to evaluate the quality of customer service and overall experience.
Ethnographic Research
A qualitative research method focused on studying cultures and communities through direct observation and participation.
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