Assume That the Control Limits of an Chart Are

question 18

Essay

Assume that the control limits of an chart are defined as 2.5 standard errors above and below the centerline.Calculate the probability that a sample mean falls outside the control limits when the process is in fact under control.

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Definitions:

Datum Feature Symbol

A symbol used in geometric dimensioning and tolerancing to specify a reference for measurements.

MMC

Maximum Material Condition; a feature size where it contains the maximum amount of material within the stated limits of size.

Perpendicularity

The state or condition of being perpendicular, meaning two lines or planes intersect at a right angle (90 degrees) to each other.

Tolerance of Form

Specifies the allowable deviation from the ideal shape of an object without specifying size, ensuring parts fit together correctly.