Which of the Following Is NOT a Crucial Element of a True

question 31

Multiple Choice

Which of the following is NOT a crucial element of a true experiment?

• A) dependent variable
• B) random assignment
• C) random sampling
• D) control

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Definitions:

Large-Sample Z

A statistical test used to infer that the means of two populations are equal when the sample size is large and the population variance is known.

Major Defects

Significant problems or imperfections observed in products or process outputs that typically require correction or significantly affect usability.

Hypotheses

Proposed explanations made on the basis of limited evidence as a starting point for further investigation, often framed as predictions to be tested by scientific experiments.

Margin of Error

An indicator of the precision of an estimate, representing the maximum likely difference between the observed sample statistic and the true value of the population parameter.