A Process That Is Assumed to Be in Control with Limits

question 98

Multiple Choice

A process that is assumed to be in control with limits of 89 ± 2 had sample averages for the x-bar chart of the following: 87.1, 87, 87.2, 89, 90, 88.5, 89.5, and 88. Is the process in control?

• A) Yes.
• B) No, one or more averages exceeded the limits.
• C) Not enough information to tell.
• D) No, there is a distinguishable trend.
• E) No, two or more consecutive points are very near the lower (or upper) limit.

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Definitions:

Respiratory diseases

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West Nile virus

A mosquito-borne virus that can cause neurological diseases and is primarily found in temperate and tropical regions.

Disease vectors

Living organisms such as mosquitoes or ticks that can transmit infectious pathogens between humans, or from animals to humans.

Immunization practices

Methods and schedules for administering vaccines to protect individuals and communities from infectious diseases.