Suppose 40 Professional Employees Are Randomly Selected

question 27

Multiple Choice

Suppose 40 professional employees are randomly selected. This sample yields a mean of 15.2 hours and a standard deviation of 1.8 hours. The 95% confidence interval is

• A) 12.45 to 17.85 hours.
• B) 14.62 to 15.78 hours.
• C) 13.88 to 14.29 hours.
• D) 10.65 to 20.22 hours.
• E) 11.98 to 18.02 hours.

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Definitions:

Literacy Rate

Literacy rate refers to the percentage of people within a population that can read and write at a specified age.

Agriculture

Agriculture is the practice of cultivating soil, producing crops, and raising livestock for food, fiber, and other products.

Developed Countries

Nations with advanced economic systems, high standards of living, robust infrastructures, and comprehensive social welfare systems.

Life Expectancy

The average number of years an individual is expected to live based on current mortality rates.