A Quality Analyst Wants to Construct a Control Chart for Determining

question 88

Multiple Choice

A quality analyst wants to construct a control chart for determining whether four machines, all producing the same product, are under control with regard to a particular quality attribute. Accordingly, she inspected 1,000 units of output from each machine in random samples, with the following results: $$\begin{array} { l c } \text { Machine } & \text { Total Defectives } \\\hline \# 1 & 23 \\\# 2 & 15 \\\# 3 & 29 \\\# 4 & 13\end{array}$$ What is the estimate of the process proportion of defectives for whenever it is under control?

• A) .08
• B) .06
• C) .04
• D) .02
• E) .01

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Definitions:

Expected Useful Life

The estimated length of time a fixed asset will be used in normal operations.

Placed in Service

Refers to the point in time when an asset begins to be used by a business for its intended purpose, marking the start of depreciation.

Asset

Items of value owned by a company, including tangible and intangible resources, that can be converted into cash.

Second-Year Depreciation

The depreciation expense allocated in the second year of an asset's useful life, considering the chosen depreciation method.