A Carload of Steel Rods Has Arrived at Cybermatic Construction

question 37

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 cm and a standard deviation of 0.05 cm, the probability that Claude's sample has a mean greater than 120.0125 cm is ___.

• A) 0.0124
• B) 0.0062
• C) 0.4938
• D) 0.9752
• E) 1.0000

---

Definitions:

Conscious Thoughts

Mental processes of which an individual is aware, involving reasoning, perception, and active cognition.

Observational Learning

A form of social learning that occurs through watching the behaviors of others and then imitating, or modeling, those behaviors.

Relatively Permanent

Describes a condition or effect that is long-lasting or enduring, though not necessarily unchangeable.

Reproduce Actions

The ability to mimic or perform the same actions as observed from others or as previously learned.