An Administrator Should Create A(n)________ Before Developing a Database Design

question 104

Multiple Choice

An administrator should create a(n) ________ before developing a database design.

• A) data aggregator
• B) query model
• C) data model
• D) data application

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Definitions:

Wilcoxon Signed-Rank Test

A nonparametric statistical test used to compare two paired samples to assess whether their population mean ranks differ.

Relative Frequency Distributions

A representation of the number of times each value occurs relative to the total number of values in a data set.

Specified Median

A particular or defined median value within a dataset, often set as a target or comparison benchmark.

Z-Test Approximation

A statistical method used to determine if there is a significant difference between a sample mean and a population mean, applicable when the sample size is large and the population variance is known.