Answer:
Capability ratio = 1.04166
Step-by-step explanation:
Given:
Length of a shoe (not deviate) = 1 mm
Standard deviation of this length = 0.32 mm
Number of standard deviations = 3
Find:
Capability ratio = ?
Computation:
Capability ratio = [Length of a shoe (not deviate) / Standard deviation of this length] / Number of standard deviations
Capability ratio = [1 / 0.32] / 3
Capability ratio = 3.125 / 3
Capability ratio = 1.04166
Capability ratio is greater than 1, therefore process is capable.