A Manager Wishes to Build a 3-Sigma Range Chart for a Process

question 149

Multiple Choice

A manager wishes to build a 3-sigma range chart for a process. The sample size is five, the mean of sample means is 16.01, and the average range is 5.3. From Table S6.1, the appropriate value of D₃ is 0, and D₄ is 2.115. The UCL and LCL for this range chart are

• A) 33.9 and 11.2
• B) 33.9 and 0
• C) 11.2 and 0
• D) 6.3 and 0
• E) 31.91 and 0.11

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Definitions:

Standard Deviation

A measure of the dispersion of a set of data from its mean, indicating how spread out the data points are.

Standard Deviation

A statistic that quantifies the amount of variation or dispersion of a set of data values.

Sample Size

The number of individual observations or data points used in a statistical sample.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values in a dataset, indicating how spread out the values are from the mean.