TABLE 17-4 A Factory Supervisor Is Concerned That the Time It Takes

question 98

Multiple Choice

TABLE 17-4
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 5 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 Table 17-4, suppose the supervisor constructs an R chart to see if the variability in collection times is in-control. What are the lower and upper control limits for this R chart?

• A) -2.33, 43.13
• B) -2.28, 42.28
• C) 0, 42.28
• D) 0, 43.13

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Definitions:

Discriminatory Manner

Acting in a way that makes an unfair distinction in treating people, especially on the grounds of race, age, or sex.

Prejudicial Remarks

Statements or comments that are unfair or biased, often based on stereotypes, leading to the discrimination of individuals or groups.

Discrimination

The unfair or biased treatment of various groups of individuals, frequently rooted in differences such as racial background, age, gender, or physical abilities.

Race

A social construct used to categorize humans into large and distinct groups based on physical characteristics, ancestry, culture, or history.