TABLE 12-18
as Part of an Evaluation Program, a Sporting

question 11

Essay

TABLE 12-18
As part of an evaluation program, a sporting goods retailer wanted to compare the downhill coasting speeds of 4 brands of bicycles. She took 3 of each brand and determined their maximum downhill speeds. The results are presented in miles per hour in the table below.
$$\begin{array} { l l l l l } \text { Trial } & \text { Barth } & \text { Tornado } & \text { Reiser } & \text { Shaw } \\1 & 43 & 37 & 41 & 43 \\2 & 46 & 38 & 45 & 45 \\3 & 43 & 39 & 42 & 46\end{array}$$
-Referring to Table 12-18, the sporting goods retailer decided to perform a Kruskal-Wallis test. The null hypothesis of the test is ______.

---

Definitions:

Variable Production Costs

Variable production costs refer to expenses that change in direct proportion to the volume of production, such as raw materials and labor costs.

Sales Commissions

Payments made to sales personnel based on the sales volume or value they have achieved.

Opportunity Cost

The potential benefit that is given up when one alternative is selected over another.

Variable Selling

Variable selling costs are expenses that fluctuate with sales volume, such as commissions and credit card fees, which increase as sales increase.