Performance Records for 18 Salespersons Are Selected to Investigate Whether

question 5

Multiple Choice

Performance records for 18 salespersons are selected to investigate whether compensation methods are a significant motivational factor. $\begin{array}{lc}\\ \text { Compensation Method } \quad\quad\quad\quad\quad\quad \quad \text { Sales }\\\begin{array}{|l|l|l|l|l|l|l|l|}\hline \text { Straight Salary } & 18 & 12 & 22 & 28 & 28 & & \\\hline \text { Straight Commission } & 27 & 34 & 34 & 27 & 20 & 16 & 24 \\\hline \text { Salary plus Commission } & 11 & 17 & 27 & 14 & 30 & 22 & \\\hline\end{array}\end{array}$
A Kruskal-Wallis test is to be performed with $\alpha$ = 0.01.The null hypothesis is _______.

• A)Group 1 = Group 2 = Group 3
• B)Group 1 \(\neq\) Group 2 \(\neq\) Group 3
• C)Group 1 \(\ge\) Group 2 \(\ge\) Group 3
• D)Group 1 \(\le\) Group 2 \(\le\) Group 3
• E)Group 1 \(\le\) Group 2 \(\ge\) Group 3

---

Definitions:

Government-Created Monopoly

A market situation where a government grants exclusive rights to a single entity to provide a particular good or service, limiting competition.

Exclusive Right

Exclusive right refers to a legal provision granting someone the sole authority to exploit a particular property, product, or service for a specified purpose.

Natural Monopoly

A situation in which a single firm can supply a product or service to an entire market more efficiently than multiple companies, often due to high fixed costs.

Economies of Scale

The cost advantage that arises with increased output of a product, leading to a fall in the per-unit production cost.