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:

Younger Than 50

Refers to individuals or entities that are below the age of 50 years.

Income Inequality

The uneven distribution of income within a population, leading to disparities in wealth and living standards among different social and economic groups.

Rates Of Crime

The statistical measure of crimes committed per unit of population or given time period within a specific area.

Rates Of Drug Use

The prevalence or frequency of drug consumption within a particular population over a specified period of time.