TABLE 11-8 An Important Factor in Selecting Database Software Is the Time

question 67

Essay

TABLE 11-8
An important factor in selecting database software is the time required for a user to learn how to use the system. To evaluate three potential brands (A, B and C) of database software, a company designed a test involving five different employees. To reduce variability due to differences among employees, each of the five employees is trained on each of the three different brands. The amount of time (in hours) needed to learn each of the three different brands is given below:

Below is the Excel output for the randomized block design:

-Referring to Table 11-8, what are the degrees of freedom of the F test statistic for testing the block effects?

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Definitions:

Treadmill

An exercise machine with a continuously moving belt, allowing a person to walk or run in place.

Shortness of Breath

The sensation of uncomfortable, difficult, or labored breathing.

Muscles

Tissues in the body that have the ability to contract, enabling movement and force.

Skeleton

The internal framework of the body composed of bones and cartilage which provides support and protection.