Random-Digit Dialing

question 25

Multiple Choice

Random-digit dialing

• A)means that the researcher uses different fingers when dialing numbers.
• B)compounds the problems of telephone directories.
• C)nets many disconnected or non-operating numbers.
• D)requires caller-ID.

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Definitions:

R Chart

R Chart, or range chart, is a type of control chart used in statistical process control to monitor the variability of a process based on samples taken from the process at given times.

Process Spread

Process spread refers to the variability within a process, often measured to assess the consistency of output over time.

Monitor

To regularly observe or check something over a period of time for the purpose of keeping track of its state or progress.

Compressive Strength

A property of material that measures its ability to withstand loads that tend to reduce size, crucial in evaluating the performance of materials in structure.