A Quality Analyst Wants to Construct a Sample Mean Chart

question 107

Multiple Choice

A quality analyst wants to construct a sample mean chart for controlling a packaging process. He knows from past experience that whenever this process is in control, package weight is normally distributed with a mean of 20 ounces and a standard deviation of two ounces. Each day last week, he randomly selected four packages and weighed each: $$\begin{array} { l l l c l } \text { Day } &&{ \text { Weight (ounces) } } \\\hline \text { Monday } & 23 & 22 & 23 & 24 \\\text { Tuesday } & 23 & 21 & 19 & 21 \\\text { Wednesday } & 20 & 19 & 20 & 21 \\\text { Thursday } & 18 & 19 & 20 & 19 \\\text { Friday } & 18 & 20 & 22 & 20\end{array}$$
What is the sample mean package weight for Thursday?

• A) 19 ounces
• B) 20 ounces
• C) 20.6 ounces
• D) 21 ounces
• E) 23 ounces

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Definitions:

Balance Sheet Accounts

Balance Sheet Accounts are the accounts that reflect the assets, liabilities, and equity of a company as recorded on the balance sheet, giving a snapshot of financial health at a specific point in time.

Current Assets

Liquid assets that a company owns and expects to use or convert into cash within a year or its operational cycle.

Cash

A company's currency or assets that can be immediately used for transactions or payments.

Supplies

Items that are used in the day-to-day operations of a business, often categorized as a current asset on the balance sheet.