A Drilling and Deburring Process Has Tolerances of Plus or Minus

question 23

Multiple Choice

A drilling and deburring process has tolerances of plus or minus .001 millimeters.What does the process standard deviation need to be in order for this process to have a capability ratio of 1.67?

• A)0.0002 millimeters
• B)0.0001 millimeters
• C)0.00002 millimeters
• D)0.00001 millimeters

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Definitions:

Interquartile Range

The difference between the 75th and 25th percentiles of a data set, measuring the spread of the middle 50% of values.

Mean

The average of a set of numbers, calculated by adding all the numbers together and then dividing by the count of those numbers.

Standard Deviation

Standard deviation is a measure that quantifies the amount of variation or dispersion of a set of data values, used to understand how spread out the values are from the mean.

Mean Speed

The average velocity of an object over a defined period of time.