TABLE 14-7 A Supplier of Silicone Sheets for Producers of Computer Chips

question 31

Short Answer

TABLE 14-7
A supplier of silicone sheets for producers of computer chips wants to evaluate her manufacturing process. She takes samples of size 5 from each day's output and counts the number of blemishes on each silicone sheet. The results from 20 days of such evaluations are presented below.

She also decides that the upper specification limit is 10 blemishes.
-Referring to Table 14-7, an R chart is to be constructed for the number of blemishes. One way to create the upper control limit involves multiplying the mean of the sample ranges by D₄. For this data set, the value of D₄ is ________.

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Definitions:

Neat

Typically refers to something that is clean, tidy, or orderly in appearance or arrangement.

Clean Hair

Hair that is free from dirt, grease, and pollutants, often achieved through washing and grooming.

Antidepressant

Antidepressants are a class of drugs that are used to treat depressive disorders by altering chemicals in the brain that may become unbalanced.

Cold Sweats

A state of sweating without the presence of heat, often accompanying anxiety, fear, or medical conditions.