Statistical Quality Control Primarily Involves

question 23

Multiple Choice

Statistical quality control primarily involves

• A) maintaining a customer feedback log and making the necessary improvements in products whenever required.
• B) checking every product for possible defects so as to reduce high costs related to poor quality.
• C) looking for defects in parts, finished goods, or other outcomes selected through a sampling technique.
• D) monitoring production quality on an ongoing basis and making corrections whenever the results show that the process is out of control.

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Definitions:

Confound

In an experiment, what occurs when two or more variables exert their influence at the same time, making it impossible to accurately establish the causal role of either variable.

Independent Variables

Factors in an experiment that are manipulated or changed by the researcher to observe their effects on dependent variables.

Dependent Variable

In research, the variable that is being measured or tested to see how it is influenced by changes in another variable (the independent variable).

Correlation Coefficients

Statistical measures that describe the size and direction of a relationship between two or more variables.