In Order for a Study to Be Considered an Experiment

question 62

Multiple Choice

In order for a study to be considered an experiment, there must be both random assignment of subjects/participants to groups, and ___________.

• A)equal numbers of male and female subjects
• B)preliminary testing to see if participants are eligible
• C)specific measurement of variables
• D)manipulation of an independent variable

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Definitions:

Sigma Control Limits

Statistical boundaries set in process control that indicate whether a process is in a state of control or needs adjustment, based on the standard deviation (σ) of the process data.

Standard Deviation

A statistical measure that quantifies the dispersion or variability of a set of data points around the mean, indicating how spread out the data points are.

Specification Limits

Defined upper and lower bounds within which a product or process measurement should fall to meet quality standards.