The specifications for the diameter of a molded part are 10 mm ± 0.5 mm.The actual average and standard deviation from 250 parts sampled is 10.1 mm and 0.1 mm, respectively.The process can be characterized as:
A)Capable.
B)Unreliable.
C)Just barely capable.

Question

Quizplus · Accepted Answer

The process is capable because the actual average (10.1 mm) is within the specified tolerance range (9.5 mm to 10.5 mm), and the standard deviation is small (0.1 mm), indicating consistent production.

The Specifications for the Diameter of a Molded Part Are