The Control Limits in a Control Chart Can Be Interpreted

question 26

Multiple Choice

The control limits in a control chart can be interpreted to mean:

• A) any value falling outside the limits is a defect and the product should be discarded.
• B) the range of virtually all special cause variation.
• C) any value falling within the limits means the product is high quality.
• D) the range of virtually all common cause variation.

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Definitions:

Estimated Regression Line

A line calculated from sample data that best fits the scatterplot of the data points, used to make predictions.

Total Variation

The sum of squared differences between individual observations and the overall mean of a data set.

Dependent Variable

The variable in an experiment or study that is expected to change in response to changes in the predictor variables.

Independent Variable

In experimental and observational studies, it's the variable that is manipulated or categorized to observe its effect on the dependent variable.