Instruction 18-10
a Factory Supervisor Is Concerned That the Time

question 1

Multiple Choice

Instruction 18-10
A factory supervisor is concerned that the time it takes workers to complete an important production task (measured in seconds) is too erratic and adversely affects expected profits.The supervisor proceeds by randomly sampling five individuals per hour for a period of 10 hours.The sample mean and range for each hour are listed below.
She also decides that lower and upper specification limit for the critical-to-quality variable should be 10 and 30 seconds,respectively.
$\begin{array}{ll}\begin{array}{c}\text { Hour }\\\hline1\\2 \\3 \\4 \\5 \\6 \\7 \\8 \\9 \\10\end{array}\begin{array}{r}\overline{X}&R\\\hline{18.4} & 25 \\16.9 & 27 \\23.0 & 30 \\21.2 & 23 \\21.0 & 24 \\24.0 & 25 \\19.3 & 12 \\15.8 & 14 \\20.0 & 13 \\23.0 & 11\end{array}\end{array}$
-Referring to Instruction 18-10,suppose the supervisor constructs an chart to see if the process is in control.What is the centre line of the chart?

• A)20.26
• B)20.00
• C)21.00
• D)24.26

---

Definitions:

Cash Disbursements

Payments a company makes in cash, covering operational expenses, purchases, or investments.

Variable Selling

Costs that vary depending on the level of sales activity, such as commissions or shipping charges.

Administrative Expense

Expenses incurred by a business that are not directly tied to a specific function such as manufacturing, production, or sales. These can include salaries of executive personnel, accounting fees, and HR services.

Budgeted Fixed Selling

Budgeted fixed selling refers to the predetermined set of expenses associated with selling a product that do not change with sales volume.