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A quality analyst wants to construct a control chart for determining whether three machines that produce the same part are under control with regard to a particular quality variable. Four parts were randomly taken from each machine with the following measurements:

A quality analyst wants to construct a control chart for determining whether three machines that produce the same part are under control with regard to a particular quality variable. Four parts were randomly taken from each machine with the following measurements:

FINANCIAL ACCOUNTING
FINANCIAL ACCOUNTING
10th Edition
ISBN:9781259964947
Author:Libby
Publisher:Libby
Chapter1: Financial Statements And Business Decisions
Section: Chapter Questions
Problem 1Q
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A quality analyst wants to construct a control chart for determining whether three machines that produce the same part are under control with regard to a particular quality variable. Four parts were randomly taken from each machine with the following measurements: Machine Measurements # 1 23 22 21 20 # 2 24 25 22 23 #3 21 24 22 21 # 4 23 21 22 22 If the upper control limit is 25 and the lower control limit is 20, which machine appears to be out of control? # 1 # 2 # 4 # 3
Transcribed Image Text:A quality analyst wants to construct a control chart for determining whether three machines that produce the same part are under control with regard to a particular quality variable. Four parts were randomly taken from each machine with the following measurements: Machine Measurements # 1 23 22 21 20 # 2 24 25 22 23 #3 21 24 22 21 # 4 23 21 22 22 If the upper control limit is 25 and the lower control limit is 20, which machine appears to be out of control? # 1 # 2 # 4 # 3
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