A Manufacturer of Windows Produces One Type That Has a Plastic

question 47

Multiple Choice

A manufacturer of windows produces one type that has a plastic coating.The specification limits for the plastic coating are 30 and 70.From time to time the plastic coating can become uneven.Therefore,in order to keep the coating as even as possible,thickness measurements are periodically taken at four different locations on the window.15 subgroups were observed,each consisting of four thickness measurements,with the following results: mean of the means = $\overline { \overline{ x } }$

= 50.05,and average range = 8.85.Calculate the center line for the X-bar chart.

• A)50.05
• B)8.85
• C)4.12
• D)3.34

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Definitions:

Medical Jargon

Specialized language used by healthcare professionals that can be difficult for non-specialists to understand.

Provider-Patient Communication

The exchange of information between healthcare providers and their patients, which is crucial for accurate diagnosis, patient compliance, and effective care.

Withdrawal Illness

Physical or psychological symptoms that occur when a person stops using a substance they are addicted to.

Physical Distress

Unpleasant physical symptoms caused by illness, injury, or stress.