A Carload of Steel Rods Has Arrived at Cybermatic Construction

question 42

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 greater than 120.0125 inches is _____________.

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

---

Definitions:

Behaviour

The actions or reactions of an individual in response to external or internal stimuli.

Actuarial Approach

An approach to evaluating and interpreting the data on patients, making predictions, and coming to decisions that rely exclusively on statistical procedures, empirical methods, and formal rules. See also clinical approach.

Equations

Mathematical statements that assert the equality of two expressions, often containing one or more variables.

Algorithms

A defined set of step-by-step procedures or instructions designed to perform a specific task or solve a particular problem.