A Motorcycle Manufacturer Produces the Parts for Its Vehicles in Different

question 113

Multiple Choice

A motorcycle manufacturer produces the parts for its vehicles in different locations and transports them to its plant for assembly.In order 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.Assuming that the process is in statistical control,calculate the natural tolerance limits for the process.

• A)[1.47,7.53]
• B)[3.197,5.803]
• C)[3.729,5.271]
• D)[4.066,4.934]

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Definitions:

Zygote

A single cell formed through fertilization.

Implantation

The stage of pregnancy at which the embryo attaches to the wall of the uterus to begin development.

Prenatal Development

The process of growth and development within the womb from conception until birth.

Germinal

Relating to the earliest phase of embryonic development, in the first two weeks post-conception when the zygote begins to divide and grow.