Transform the Relation in Figure TB 5 $\text { Customers }$

question 27

Essay

Transform the relation in Figure TB 5.5 to third normal form (3NF). Label each new relation with a name that describes the attributes.
$\text { Customers }$
$\begin{array}{|r|l|l|l|l|l|l|}\hline \text { Number } & \begin{array}{c}\text { First } \\\text { Name }\end{array} & {\begin{array}{c}\text { Last } \\\text { Name }\end{array}} & {\text { Address }} & {\text { City }} & \text { State } & {\begin{array}{c}\text { Zip } \\\text { Code }\end{array}} \\\hline 104 & \text { Joln } & \text { Welch } & 123 \text { East St. } & \text { Ocoee } & \text { FL } & 32761 \\106 & \text { Mary } & \text { Best } & 745 \text { Webster Lare } & \text { Pensacola } & \text { FL } & 32809 \\106 & \text { Adam } & \text { Camp } & 4842 \text { Highand } & \text { Orange Lake } & \text { FL } & 32681 \\107 & \text { Patrick } & \text { Gaston } & 54 \text { Randh Road } & \text { Pensacola } & \text { FL } & 32809 \\100 & \text { Jaric } & \text { Lambert } & 27 \text { Rabin Hood } & \text { Orange Lake } & \text { FL } & 32681 \\\hline\end{array}$
$\text { Figure TB } 5.5 \text { Relation in Second Normal Form (2NF) }$

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Definitions:

True Score

The true score in measurement theory is the actual score that perfectly reflects the corresponding attribute or quantity without any measurement error.

Observed Score

The actual score or value obtained from measuring or testing an individual's performance or trait.

Error Impact

Refers to the effect that inaccuracies in data or calculations can have on the results of a study or analysis.

Reliability Equation

A formula used to calculate the consistency or stability of scores obtained from tests measuring the same construct.