What is the average run length (ARL)until an 
control chart signals a false alarm if the control limits are set at ±2.5 standard errors from the centerline?
Definitions:
Confederate Forces
Military units or groups that were loyal to the Confederate States of America during the American Civil War.
Pennsylvania
A state located in the northeastern region of the United States, known for its rich history, diverse landscapes, and significant cultural contributions.
William C. Durant
An American industrialist and the founder of General Motors, a key figure in the establishment of the automobile industry in the United States.
Innovative Motor
A motor that incorporates new ideas, features, or technology to improve performance or efficiency.
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