A Carload of Steel Rods Has Arrived at Cybermatic Construction

question 69

Multiple Choice

A carload of steel rods has arrived at Cybermatic Construction Company. The car contains 50,000 rods. Claude Ong,manager of Quality Assurance,directs his crew measure the lengths of 100 randomly selected rods. If the population of rods has a mean length of 120 inches and a standard deviation of 0.05 inch,the probability that Claude's sample has a mean between 119.985 and 120.0125 inches is ____________.

• A) 0.9925
• B) 0.9974
• C) 0.9876
• D) 0.9544
• E) 0.9044

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Definitions:

Optimal Solution

The best possible outcome or answer to a problem, often found through specific methods or algorithms in mathematics, computer science, or operations research.

Visual Images

Mental representations of objects, scenes, or events that are not physically present, often used in cognitive and perceptual psychology.

Manipulate

To skillfully handle, control, or use something, often with the connotation of unfairness or deceit.

Sensory Modalities

Different forms of sensory perceptions, such as sight, sound, touch, taste, and smell, through which humans and animals perceive the world.