If He Uses Upper and Lower Control Limits of 520

question 87

Multiple Choice

If he uses upper and lower control limits of 520 and 480 hours, what is his risk (alpha) of concluding service life is out of control when it is actually under control (Type I error) ?

• A)0.0026
• B)0.0456
• C)0.3174
• D)0.6826
• E)0.9544

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Definitions:

Atomic Nucleus

The dense center of an atom, containing protons and neutrons, and holding the bulk of the atom's mass.

Beta Particle

A fast-moving electron or positron with high energy released during the radioactive decay of an atomic nucleus.

Atomic Nucleus

The small, dense region at the center of an atom, consisting of protons and neutrons and containing nearly all the atom's mass.

Beta Particle

A high-energy, high-speed electron or positron emitted by the radioactive decay of an atomic nucleus during beta decay.