Table 6.1 Factors for Calculating Three-Sigma Limits for the -Chart and -Chart

question 141

Multiple Choice

Table 6.1
Factors for Calculating Three-Sigma Limits for the -chart and R-chart
Source: 1950 Manual on Quality Control of Materials,copyright
American Society for Testing Materials.Reprinted with permission.
-A milling operation has historically produced an average thickness of 0.005 inch with an average range of 0.015 inch.Currently,the first three items from each batch of 20 are inspected.Use Table 6.1.What is the value of the LCL ?

• A)less than or equal to 0.00100
• B)greater than 0.00100 but less than or equal to 0.00299
• C)greater than 0.00299 but less than or equal to 0.00499
• D)greater than 0.00499

---

Definitions:

Motor Neurons

Nerve cells forming part of the pathway along which impulses pass from the brain or spinal cord to a muscle or gland.

Sensory Neurons

Neurons responsible for converting external stimuli from the organism's environment into internal electrical impulses.

Robotics

The field of engineering and science dedicated to the design, construction, operation, and use of robots.

Nervous System

The complex network of nerve cells and fibers that transmits signals between different parts of the body, regulating and coordinating bodily functions and activity.