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

question 157

Short Answer

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 is the critical value for testing the block effects at a 0.05 level of significance?

---

Definitions:

Neurotransmitter

Chemical substances in the brain that transmit signals from one neuron to another, playing key roles in brain function and behavior.

Depression

A mood disorder characterized by persistent feelings of sadness, hopelessness, and a lack of interest or pleasure in activities.

Acetylcholine

A neurotransmitter in the central and peripheral nervous systems that plays a key role in muscle activation and memory.

Muscle Contraction

The process in which muscle fibers shorten or lengthen, producing movement or maintaining posture.