A Carload of Steel Rods Has Arrived at Cybermatic Construction

question 75

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 have a mean length of 120 inches and a standard deviation of 0.05 inch,the probability that Claude's sample has a mean less than 119.985 inches is _____________.

• A) 0.9974
• B) 0.0026
• C) 0.4987
• D) 0.0013
• E) 0.0030

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Definitions:

Conscious Mind

The aspect of the mind that involves awareness of the self, the environment, and one's thoughts and experiences.

Latency Stage

A phase in Freud's psychosexual development theory occurring in childhood, where sexual urges are repressed, allowing for focus on social and intellectual growth.

Formal Education

The structured, systematic instruction and training provided by schools and institutions, leading to recognized qualifications.

Puberty

The developmental stage during which a child's body matures into an adult body capable of sexual reproduction.