A Soft Drink Filling Machine Is Set Up to Fill

question 68

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:

Land's Cost

The purchase price of land plus any additional costs spent to put it into use, such as legal fees and land grading expenses.

Prepaid Insurance

An asset account that reflects the amount paid for insurance policies in advance, before the coverage period.

Insurance Expense

This refers to the costs incurred by a business or individual as a result of purchasing insurance to protect against risks.

Unexpired Insurance

The portion of an insurance premium that has not yet expired or been used and is considered a prepaid expense.