TABLE 17-7 A Supplier of Silicone Sheets for Producers of Computer Chips

question 51

Short Answer

TABLE 17-7
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.
-Referring to Table 17-7, an R chart is to be constructed for the number of blemishes. The lower control limit for this data set is ________.

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Definitions:

Statistical Inference

The process of drawing conclusions about population parameters based on data from a sample.

Descriptive Statistics

Statistical methods that summarize and describe the features of a collection of data, including measures of central tendency and variability.

Mean

The arithmetic average of a set of values or quantities, obtained by dividing the sum of all values by the number of values.

Employee Health Benefits Package

A collection of health-related benefits, such as medical insurance and wellness programs, offered by an employer to its employees.