A Random Sample of 64 Students at a University Showed

question 70

Multiple Choice

A random sample of 64 students at a university showed an average age of 25 years and a sample standard deviation of 2 years.The 98% confidence interval for the true average age of all students in the university is

• A) 20.5 to 29.5.
• B) 24.4 to 25.6.
• C) 23.0 to 27.0.
• D) 20.0 to 30.0.

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Definitions:

Substitutes

Goods or services that can be used in place of each other, where the increase in the price of one leads to an increased demand for the other.

Coffee

A beverage made by grinding and brewing the seeds of the coffee plant, commonly consumed for its stimulating effects.

Tea

An aromatic beverage commonly prepared by pouring hot or boiling water over cured or fresh leaves of the Camellia sinensis plant.

Wage Rate

The amount of compensation or payment received by an employee per unit of time or piece of work completed.