Exhibit 20

question 8

Multiple Choice

Exhibit 20.7.A marketing firm needs to replace its existing network provider,and is considering three different providers.A primary consideration is the amount of system down time.The following table contains the amount of network down-time (in hours) for the last five months for each network provider. Refer to Exhibit 20.7.For the Kruskal-Wallis test,the competing hypotheses are:

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Definitions:

Sacajawea

A Lemhi Shoshone woman who helped the Lewis and Clark Expedition achieve their chartered mission objectives by exploring the Louisiana Territory.

Shoshone Indian

A member of a Native American tribe originally living in the western United States.

Pacific Ocean

The biggest and most profound ocean on Earth, situated between the Americas in the east and Asia and Australia in the west.

Motorists

Individuals who operate cars or other motor vehicles.