A Soft Drink Filling Machine Is Set Up to Fill

question 7

Essay

A soft drink filling machine is set up to fill bottles with 12 ounces of soft drink. The standard deviation s is known to be 0.4 ounces. The quality control department periodically selects samples of 16 bottles and measures their contents. Assume the distribution of filling volumes is normal.
a.Determine the upper and lower control limits and explain what they indicate.
b.The means of six samples were 11.8, 12.2, 11.9, 11.9, 12.1, and 11.8 ounces. Construct an X bar chart and indicate whether or not the process is in control.

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Definitions:

Required Rate Of Return

The minimum annual percentage return an investor expects to achieve by investing in a particular asset or project.

Net Operating Income

A measure of a company's profitability, calculated as the difference between total revenue and operating expenses, excluding taxes and interest.

Average Operating Assets

The average value of the assets used in the operations of a business over a specific period.

Net Operating Income

The total profit of a company after operating expenses are subtracted from gross profit.