A Classic Example of Unneeded Normalization Is When We Are

question 95

Multiple Choice

A classic example of unneeded normalization is when we are dealing with ________.

• A)ZIP codes
• B)sales orders and line items
• C)association patterns
• D)multivalued dependencies
• E)general purpose remarks columns

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Definitions:

Mean

The arithmetic average of a set of numbers, obtained by dividing the sum of these numbers by their quantity.

Z-statistic

A statistic used to determine the difference between an observed statistic and its hypothesized population parameter, measured in units of the standard deviation.

Two-tailed Test

A statistical test hypothesis that allows for the possibility of an effect in two directions, either greater than or less than.

Significant

In statistics, indicating that the results of an analysis are unlikely to have occurred purely by chance, at a specified level of probability.