The Distribution of a Sample of the Outside Diameters of PVC

question 47

Multiple Choice

The distribution of a sample of the outside diameters of PVC pipes approximates a symmetrical,bell-shaped distribution. The arithmetic mean is 14.0 inches,and the standard deviation is 0.1 inches. About 68% of the outside diameters lie between what two amounts?

• A)13.5 and 14.5 inches
• B)13.0 and 15.0 inches
• C)13.9 and 14.1 inches
• D)13.8 and 14.2 inches

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Definitions:

Sensory Adaptation

The adjustment of sensory receptors to the level of stimulation they are exposed to, leading to decreased sensitivity with constant exposure.

Depth Perception

The visual ability to perceive the world in three dimensions, enabling the estimation of the distance of an object.

Absolute Threshold

The minimum stimulus intensity required to detect a particular stimulus 50% of the time.

Energy

The capacity to do work or produce change in physical or chemical systems, existing in various forms such as kinetic, potential, thermal, and electrical.