A Motorcycle Manufacturer Produces the Parts for Its Vehicles in Different

question 32

Multiple Choice

A motorcycle manufacturer produces the parts for its vehicles in different locations and transports them to its plant for assembly.To keep the assembly operations running efficiently,it is vital that all parts be within specification limits.One important part used in the assembly is the engine camshaft,and one important quality characteristic is the case hardness depth.Specifications state that the hardness depth must be between 3.0 mm and 6.0 mm.To investigate the process,the quality control engineer selected 25 daily subgroups of n = 5 and measured the hardness depth.The process yielded a mean of the means = 4.50 and an average range = 1.01.Is the process capable of meeting the specifications?

• A)Yes
• B)No

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Definitions:

Denominator

The bottom number in a fraction that shows how many equal parts the item or group is divided into.

Categorical Variable

A variable with categorical data.

Dummy Variables

Variables used in regression analysis to represent categorical data by converting it into a series of binary values.

Levels

The different values or categories that a factor can have in an experiment or statistical model.