Which Statistical Technique Is Appropriate When We Describe a Single

question 76

Multiple Choice

Which statistical technique is appropriate when we describe a single population of qualitative data with two or more categories?

• A) The z-test of the difference between two proportions.
• B) The chi-square goodness-of-fit test.
• C) The chi-square test of a contingency table.
• D) The z-test of the difference between two proportions and the chi-square goodness-of-fit test.
• E) The z-test of the difference between two proportions and the chi-square test of a contingency table.

---

Definitions:

Break-even Point

The sales level at which total revenues equate to total costs, resulting in no profit or loss, indicating the minimum sales necessary to cover all expenses.

Fixed Costs

Expenses that do not change with the level of production or sales activity, such as rent, salaries, and insurance premiums.

Unit Contribution Margin

The difference between the selling price per unit and the variable cost per unit, indicating how much each unit sold contributes to fixed costs and profits.

Break-even Point

The production level at which total revenues equals total expenses, resulting in neither profit nor loss.