A Statistics Professor Asked Students in a Class Their Ages

question 13

Multiple Choice

A statistics professor asked students in a class their ages. Based on this information, the professor states that the average age of all the students in the university is 24 years. This is an example of

• A) an observational study.
• B) descriptive statistics.
• C) an experiment.
• D) statistical inference.

---

Definitions:

Work in Process

Items that are in the process of being produced but are not yet completed in a manufacturing setting.

Standard Costs

Estimated costs of production, labor, and materials that are set in order to budget and control expenses.

Fixed Manufacturing Overhead

Expenses associated with manufacturing that do not vary with the level of production, including salaries of managers and depreciation of equipment.

Direct Labor Costs

Expenses directly tied to the work of employees manufacturing a product or delivering a service.