An Army Depot That Overhauls Ground Mobile Radar Systems Is

question 12

Multiple Choice

An army depot that overhauls ground mobile radar systems is interested in improving its processes. One problem involves troubleshooting a particular component that has a high
Failure rate after it has been repaired and reinstalled in the system. The shop floor
Supervisor believes that having standard work procedures in place will reduce the time
Required for troubleshooting this component. Time (in minutes) required troubleshooting
This component without and with the standard work procedure is recorded for a sample of
19 employees. In order to determine if having a standard work procedure in place reduces
Troubleshooting time, they should use

• A) a one-tailed paired t-test.
• B) a two-tailed test of two independent means.
• C) a one-tailed test of two independent means.
• D) a two-tailed paired t-test.
• E) a test of two proportions.

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Definitions:

Social Conventions

Agreed-upon norms and rules that govern behaviors within a society or group, facilitating orderly and predictable interactions.

Show Our Emotions

The act of expressing one’s internal emotional states to others through facial expressions, gestures, and speech.

Fraternal Twins

Twins that develop from two different eggs fertilized by separate sperm cells, resulting in siblings that are genetically distinct.

Identical Twins

Identical twins are siblings born from the same fertilized egg that has split into two, sharing all of their DNA and typically having very similar appearances and genetic traits.