Which of the Following Statements Regarding Control Charts Is False

question 89

Multiple Choice

Which of the following statements regarding control charts is false?

• A) Control charts have a center line that represents an average of the process.
• B) Control charts have upper and lower limits that indicate the range of acceptable values.
• C) Data points above the upper control limits mean that the product's quality is beyond expectations.
• D) All of the above statements are true.

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Definitions:

Statistically Significant

An observation or effect sufficiently large or important to be unlikely to have occurred by chance, as per a predefined threshold in hypothesis testing.

Confidence Interval

An aggregation of values, hailing from sample statistics, anticipated to envelop the value of an unseen population parameter.

Sample Mean

The average value of a sample set, calculated by summing all observations and dividing by the number of observations.

Symmetric

A shape or distribution is considered symmetric if it looks the same to the left and right of the center point.