A Random Sample of 15 Crates Have a Mean Weight

question 110

Multiple Choice

A random sample of 15 crates have a mean weight of 165.2 pounds and a standard deviation of 14.9 pounds. Construct a 95% confidence interval for the population standard deviation σ. Assume the population is normally distributed, and round to the nearest hundredth when necessary.

• A) (10.91, 23.5)
• B) (119, 552.19)
• C) (2.83, 6.09)
• D) (11.46, 21.75)

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Definitions:

Economic Growth

An increase in the production of goods and services in an economy over a period of time, indicating improvement in the standard of living.

Human Resources

The department of a business or organization that deals with the hiring, administration, and training of personnel.

Population Growth

The increase in the number of individuals in a population, often expressed as a percentage of the total population.

Labor Productivity

A measure of the efficiency of a person, machine, factory, system, etc., in converting inputs into useful outputs.