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From this data, find the following. Please show the steps, or I report the answer and you as well. According to the Cp and Cpk
From this data, find the following. Please show the steps, or I report the answer and you as well.
According to the Cp and Cpk to ppm conversion table, how many defects per million is Piping International Inc. capable of?
How many defects per million is Tubing LLC capable of?
You work for Wheelchair Inc., a large manufacturer of long-term disability equipment. For final assembly of their most popular wheelchair, the company relies on a range of different metal parts and subassemblies it purchases from major suppliers on the international market. One critical component you purchase is steel tubing which is used to create structure for the backrest of the wheelchairs. Your engineering department communicated the following specifications to you regarding the diameter of the tubing: Nominal (ideal) diameter is 33.00mm,LSL=32.9865mm and USL=33.0135mm. Industry accepted standard for this type of component is a Cp of 1.33 or higher (for capability). One supplier, Piping International Inc., provided SPC charts of their manufacturing process. From these charts, you determined that their mean diameter is 32.997mm and with a standard deviation of 0.003mm. Another supplier, Tubing LLC., also approached you. Tubing LLC sales team provided detailed process data showing their process capability indexes to be Cp=1.00 and their Cpk to be 0.75Step by Step Solution
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