SCENARIO 11-13
an Important Factor in Selecting Database Software Is

question 399

Short Answer

SCENARIO 11-13
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: $\begin{array}{ | r | r | r | r | } \hline & & \text { Software } & \\\hline \text { Operator } & \text { A } & \text { B } & \text { C } \\\hline 1 & 17 & 17 & 23 \\\hline 2 & 18 & 17 & 23 \\\hline 3 & 14 & 13 & 19 \\\hline 4 & 12 & 11 & 18 \\\hline 5 & 19 & 17 & 22 \\\hline \text { Mean } & 16 & 15 & 21 \\\hline\end{array}$

$\text { Below is the Excel output for the randomized block design: }$
$\begin{array}{lrrrrrr}\hline \text { Source of Variation } & S S & d f & \text { MS } & {\text { F }} & \text { P-value } & \text { Fcrit } \\\hline \text { Rows } & 84.66667 & 4 & 21.16667 & 50.8 & 9.98 \mathrm{E}-06 & 3.837853 \\\text { Columns } & 103.3333 & 2 & 51.66667 & 124 & 9.54 \mathrm{E}-07 & 4.45897 \\\text { Error } & 3.333333 & 8 & 0.416667 & & & \\\text { Total } & 191.3333 & 14 & & & & \\\hline\end{array}$
-Referring to Scenario 11-13, what is the value of the test statistic for the randomized block F test
for the difference in the means?

Understand the role of planning in identifying the need, vision, and direction for a business.

Understand the impact of racism and ethnocentrism on individual lives and cultures.

Analyze the differentiation between possessive structures in different languages, highlighting cultural distinctions.

Recognize the interplay between art and economic considerations in cultural expressions.

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Definitions:

Complex Grammar

An aspect of language that involves structuring of phrases and sentences in a detailed and sophisticated manner, beyond simple construction.

Passive Sentences

Sentences in which the subject is the recipient of the action, rather than the doer, often shifting focus from the actor to the action or object.

Preschoolers

Children in the age group typically between three to five years old, prior to the commencement of formal education in elementary school.

Vocabulary Development

The process of acquiring and expanding the set of words known by a person, critical for communication and knowledge acquisition.