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

question 153

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, the randomized block F test is valid only if the population of the amount of time needed has the same variance for the 3 brands.

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Definitions:

Hypothalamus

A small but crucial part of the brain that plays a key role in hormone production, regulation of body temperature, hunger, thirst, and circadian rhythms.

Pituitary

A small, pea-sized gland located at the base of the brain, known as the "master gland," it secretes hormones that regulate various physiological processes, including growth, reproduction, and metabolism.

Thyroid

The thyroid is a gland in the neck that produces hormones regulating metabolism, body energy levels, and overall growth and development in the body.

Gonad

A generic term for an organ in the body that produces sex cells; in males, this refers to the testes, and in females, the ovaries.