A company making tires for bikes is concerned about the exact width of its cyclocross tires. The company has a lower specification limit of 22.8 mm and an upper specifica- tion limit of 23.2 mm. The standard deviation is 0.15 mm and the mean is 23 mm. What is the process capability index for the process?

Capability index = 0.4444

Explanation:

Given:

lower specification limit = 22.8 mm

Upper specification limit = 23.2 mm

The standard deviation = 0.15 mm

Mean = 23 mm

Capability index = ?

Computation of Capability index:

Capability index = minimum of [ ]

Capability index = minimum of [   ]

Capability index = minimum of [   ]

Capability index = minimum of [   ]

Capability index = 0.4444

corrosion is a natural process, which converts a refined metal to a more chemically-stable form, such as its oxide, hydroxide, or sulfide. it is the gradual destruction of materials (usually metals) by chemical and/or electrochemical reaction with their environment.

explanation: