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The Width of a Bronze Bar Is Intended to Be

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The width of a bronze bar is intended to be one-eighth of an inch (0.125 inches). Inspection samples contain five bars each. The average range of these samples is 0.01 inches. What are the upper and lower control limits for the x-bar and R-chart for this process, using 3-sigma limits?


Definitions:

Warranty of Merchantability

An implied guarantee that a product will meet the reasonable expectations of the buyer, including being fit for the purpose for which it was sold.

Business of Selling

The activity or profession of promoting and exchanging goods or services for money.

Title Warranties

Legal guarantees provided by a seller to a buyer that they possess a clear and unencumbered title to the property or goods being sold.

Disclaim or Modify

To reject, deny responsibility, or change terms and conditions in an agreement or statement.

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