Find the Z-Score Corresponding to the Given Value and Use $2.1$

question 100

Short Answer

Find the z-score corresponding to the given value and use the z-score to determine whether the value is unusual.
Consider a score to be unusual if its z-score is less than -2.00 or greater than 2.00. Round the z-score to the nearest tenth if necessary.
-A weight of 110 pounds among a population having a mean weight of 161 pounds and a standard deviation of 24.3 pounds. A) -2.1; unusual
B) $2.1$ ; not unusual
C) $- 51.0$ ; unusual
D) -2.1; not unusual

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Definitions:

Break-even Point

The point at which total costs and total revenues are exactly the same, yielding neither a profit nor a loss.

Degree of Operating Leverage

The degree of operating leverage is a financial ratio that measures the sensitivity of a company's operating income to its sales, indicating how earnings before interest and taxes are affected by sales volume.

Fixed Expenses

Costs that do not vary with the level or amount of goods or services produced or sold.

Contribution Margin

The difference between sales revenue and variable costs, used to cover fixed costs and profits.