Instruction 18-16 A Factory Supervisor Is Concerned That the Time It Takes

question 98

Short Answer

Instruction 18-16
A factory supervisor is concerned that the time it takes workers to complete an important production task (measured in seconds) is too erratic and adversely affects expected profits. The supervisor proceeds by randomly sampling five individuals per hour for a period of 10 hours. The sample mean and range for each hour are listed below.
She also decides that lower and upper specification limit for the critical-to-quality variable should be 10 and 30 seconds, respectively.
-Referring to Instruction 18-16,what is the value of the C_pk index?

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Definitions:

Hypothesis

A hypothesis is a tentative explanation for an observation, phenomenon, or scientific problem that can be tested by further investigation or experimentation.

Tentative Explanation

A provisional hypothesis or theory proposed to explain an observation or phenomenon, subject to further investigation and testing.

Objective Observation

The process of gathering data or information through sensory input without bias or preconceived ideas influencing the perception.

Mary Anning

A pioneering 19th-century British paleontologist who made important contributions to the field through her discoveries of Jurassic marine fossil beds along the English Channel at Lyme Regis.