The Human Resources Department of a Large Corporation Maintains Records

question 33

Multiple Choice

The Human Resources Department of a large corporation maintains records on its employees. Data are maintained of the following variables: Age, Employment Category,
Education, Whether or not the employee participates in a wellness program, and
Paycheck benefit deductions. Which of these variables are categorical?

• A) Age, Employment Category, and Education
• B) Employment Category, Education, and Whether or not the employee participates in
• A wellness program
• C) Education, Whether or not the employee participates in a wellness program, and
• Paycheck benefit deductions
• D) All of the variables
• E) None of the variables

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Definitions:

Sampling Error

The difference between a sample statistic and the corresponding population parameter, arising due to the fact that the sample is not a perfect representation of the population.

Biased Estimator

An estimator that, on average, does not equal the true parameter of the population, indicating a systematic error in estimation.

Population Parameter

A numerical value summarizing a characteristic of an entire population, such as mean or variance.

Efficient Estimator

An estimator that achieves the lowest possible variance among all unbiased estimators for a parameter of interest.