A Certain Population Is Bimodal

question 38

Multiple Choice

A certain population is bimodal. We want to estimate its mean, so we will collect a sample. Which should be true if we use a large sample rather than a small one?
I. The distribution of our sample data will be clearly bimodal.
II. The sampling distribution of the sample means will be approximately normal. III. The variability of the sample means will be smaller.

• A) II and III
• B) I, II, and III
• C) III only
• D) II only
• E) I only

---

Definitions:

Profit Maximisation

An objective of management to achieve the highest possible profit from operations, usually by increasing revenue and/or reducing costs.

Employee Morale

The overall outlook, attitude, satisfaction, and confidence that employees feel at work, which can significantly impact productivity and retention.

Constraints

Limitations or restrictions that affect the planning, process, or outcome of an activity or system.

Opportunity Costs

The cost of forgoing the next best alternative when making a decision or choosing between options.