Table 5.11 Factors for Calculating Three-Sigma Limits for the Chart and Chart

question 49

Multiple Choice

Table 5.11
Factors for Calculating Three-Sigma Limits for the Chart and R-Chart
Source: 1950 ASTM Manual on Quality Control of Materials,copyright American Society for Testing Materials.Reprinted with permission.
-Thermostats are subjected to rigorous testing before they are shipped to air conditioning technicians around the world.Results from the last five samples are shown in the table.Calculate control limits for a chart that will monitor performance to target.The correct control limits as (LCL,UCL) are:

• A)(70.46,73.39)
• B)(68.94,74.89)
• C)(69.71,74.14)
• D)(69.80,74.05)

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Definitions:

Shearing Zones

Regions of the Earth's crust where rocks are subject to forces causing them to slide past one another, often associated with fault lines.

Different Ages

Refers to the variation in chronological periods or times at which different entities existed or events occurred.

Slope Failure

This term refers to the sudden downfall or movement of a portion of a slope caused by the loss of its stability, often induced by factors like water infiltration, overloading, or seismic activity.

Hazard

A potential source of danger or harm, often used in the context of natural disasters or risks to human health and safety.