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?

---

Definitions:

Viral Fever

A fever caused by underlying viral infections.

Common Cold

A widely prevalent, contagious viral infection of the upper respiratory tract, resulting in symptoms like sneezing, coughing, sore throat, and runny nose.

Innate Immune System

The non-specific first line of defense against pathogens, consisting of physical barriers, immune cells, and proteins.

Specific Immune System

Refers to the part of the immune system that provides long-term immunity against pathogens, by recognizing and remembering specific antigens.