You Are Developing an "X-Bar" Chart Based on Sample Means

question 27

Multiple Choice

You are developing an "X-bar" chart based on sample means.You know the standard deviation of the sample means is 4,the desired confidence level is 99.7 percent and the average of the sample means is 24.Which of the following is your UCL?

• A)36
• B)24
• C)12
• D)4
• E)None of the above

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Definitions:

Latissimus Dorsi

A large, flat muscle on the back that helps in the movement of the shoulders and arms.

Trapezius Group

A collection of muscles extending from the neck to the mid-back, responsible for moving the shoulder blades and supporting the arm.

Rhomboideus Major

A muscle in the back that connects the spine to the scapula, involved in retracting the shoulder blade.

Infraspinatus

A muscle located on the back of the shoulder blade that is responsible for the external rotation of the shoulder joint.