A Work Sampling Study Requires an Acceptable Error Level of 10

question 26

Multiple Choice

A work sampling study requires an acceptable error level of 10 percent and z = 2 for 95.45 percent confidence. The adequate sample size is __________ if the sample proportion is thought to be as large as 50 percent, but __________ if the sample proportion is thought to be about 20 percent.

• A) 50; 20
• B) 100; 64
• C) 100; 16
• D) 20; 50
• E) cannot be determined from the information given

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Definitions:

Absolute Refractory Period

A period immediately following an action potential during which a neuron is incapable of generating another action potential, no matter the stimulus strength.

Stimulation

The act of applying a stimulus to generate a response in an organ or tissue.

Plasma Membrane

A semi-permeable membrane found in cells that separates the interior of the cell from its external environment and regulates the movement of substances in and out of the cell.

Depolarization

The reduction of a cell's membrane potential, making it more positive, and initiating action potentials.