A Manufacturer of Windows Produces One Type That Has a Plastic

question 95

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 and each subgroup consists of the four thickness measurements taken across the windows at a particular time with the following results: mean of the means = = 50.05 and the average range of 8.85. Calculate the center line for the R chart.

• A)50.05
• B)8.85
• C)2.21
• D)0.59

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Definitions:

Available-for-sale Securities

Financial assets that are intended to be sold before they reach maturity or are needed to fund specific obligations.

Interest Revenue

Income earned on investments, loans, and other interest-bearing financial instruments, recorded as revenue in the income statement.

Debt Trading Securities

Financial instruments that involve debt and are actively bought and sold on markets with the aim to profit from price movements.

Net Income

The total profit of a company after all revenues, costs, and expenses have been deducted, also known as net earnings.