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

question 113

Multiple Choice

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 11-9,what type of experimental design was employed in this study?

• A)Completely randomized design with 4 treatments
• B)Randomized block design with four treatments and 10 blocks
• C)2 x 2 factorial design with 10 observations
• D)None of the above

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Definitions:

Clarity

The quality of being coherent and intelligible, or clear in thought or expression.

Bacillus Anthracis

A bacterium that causes anthrax, a serious infectious disease in humans and animals.

Gram-positive

Relating to a group of bacteria that retain the crystal violet stain used during the Gram staining method of bacterial differentiation, appearing purple under a microscope.

Gram-variable

Pertaining to bacteria that do not consistently stain either as Gram-positive or Gram-negative because of their cell wall composition variations.