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

question 16

True/False

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, there is evidence of a significant difference in the mean amount of time needed to learn Brand A and Brand B at the 5% level of significance.

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Definitions:

Chemical Receptors

Proteins in cells that bind to specific chemicals, allowing the cell to respond to various signals and changes in its environment.

Arterial Oxygen Saturation

A measure of the amount of oxygen bound to hemoglobin in the blood, indicating how well oxygen is being transported to body tissues.

Right Atrium

The right upper chamber of the heart that receives deoxygenated blood from the body and pumps it to the right ventricle.

Left Ventricle

The chamber within the heart that receives oxygen-rich blood from the left atrium and pumps it to the body through the aorta, playing a crucial role in systemic circulation.