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

question 70

True/False

SCENARIO 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 Scenario 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:

Difference Threshold

The minimum difference in stimulation that a person can detect 50% of the time, also known as the just-noticeable difference (JND).

Semicircular Canals

Three fluid-filled circular tubes in the inner ear containing the sensory receptors that detect head motion caused when an individual tilts or moves the head and/or the body.

Inner Ear

The innermost part of the ear, containing the cochlea and vestibular system, crucial for hearing and balance.

Trichromatic Theory

A theory that explains how the human eye sees color by the presence of three types of cones sensitive to different wavelengths of light: short (blue), medium (green), and long (red).