A Quality Control Chart Is Used to Monitor the Customer

question 54

Multiple Choice

A quality control chart is used to monitor the customer wait time at a local call center. Sample means of five times are averaged and plotted over time. The last five sample means show a trend of decreasing sample means. The process is ________.

• A)out of control
• B)in control
• C)improving
• D)showing chance variation

---

Definitions:

Profitability Index

A financial tool used to assess the desirability of an investment by dividing the present value of future cash flows by the initial investment cost.

Economic Lives

The duration over which an asset is expected to be useful in generating revenue or other economic benefits.

Equivalent Annual Cost

The cost per year of owning and operating an asset over its entire lifespan, taking into account both the initial purchase price and the ongoing operating costs.

NPV

A calculation technique used to estimate the value of an investment by assessing the present value of all cash flows associated with it, both incoming and outgoing.