Which Common Database Challenge Is Illustrated by the Text's Discussion

question 152

Multiple Choice

Which common database challenge is illustrated by the text's discussion of receiving multiple pieces of the same direct mail advertising?

• A)data normalization
• B)data accuracy
• C)data redundancy
• D)data inconsistency

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Definitions:

T-test

A technique in statistics for comparing the means of two groups to see if they differ in a statistically significant way.

Alpha

Often referred to as the level of significance in hypothesis testing, it represents the threshold at which the null hypothesis is rejected.

T-test

A statistical test used to compare the mean of two groups to see if there is a significant difference between them.

Null Hypothesis

The hypothesis that there is no significant difference between specified populations, any observed difference being due to sampling or experimental error.