A Manufacturer of Windows Produces One Type That Has a Plastic

question 53

Multiple Choice

A manufacturer of windows produces one type that has a plastic coating.The specification limits for the plastic coating are 30 and 70.From time to time the plastic coating can become uneven.Therefore,to keep the coating as even as possible,thickness measurements are periodically taken at four different locations on the window.15 subgroups were observed,each consisting of four thickness measurements,with the following results: mean of the means = = 50.05,and average range of 8.85.Find the sigma level capability of the process.

• A)4.64
• B)-4.66
• C)7.83
• D)2.25

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Definitions:

Unilateral Contract

A contract in which one party makes a promise in exchange for an act by another party.

Bilateral Contract

An agreement between two parties where each party makes a promise to the other, with obligations and benefits on both sides.

Express Contract

A contract in which the terms of the agreement are explicitly stated by the parties, either verbally or in writing.

ESIGN

The Electronic Signatures in Global and National Commerce Act, a federal law that facilitates the use of electronic records and signatures in interstate and foreign commerce.