A Restaurant Manager Wants to Determine the Percent of Time

question 171

Multiple Choice

A restaurant manager wants to determine the percent of time the servers are working and idle using work sampling. His calculation shows that he needs to take a sample of 100 based on a z value of 2. If he wants to use a z value of 3, how many more samples does he need to take?

• A) 225
• B) 125
• C) 150
• D) 50
• E) There is not enough information.

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Definitions:

Inferior Oblique Muscle

A muscle in the eye that contributes to lateral and upward movement of the eyeball.

Sphincter Pupillae Muscle

A ring-shaped muscle in the eye that contracts to control the size of the pupil and thus the amount of light entering the eye.

Dilator Pupillae Muscle

A muscle in the eye that controls the widening of the pupil to adjust the amount of light entering the eye.

Aqueous Humor

A clear, watery fluid located in the eye between the lens and the cornea, providing nutrients and maintaining eye pressure.