Duplicate Values in a Table Can Prevent You From

question 15

Multiple Choice

Duplicate values in a table can prevent you from:

• A)enforcing referential integrity.
• B)adding additional records.
• C)having an accurate database.
• D)running an append query.

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Definitions:

Critical Value

A threshold value that is compared with the test statistic to determine whether to reject the null hypothesis in hypothesis testing.

Null Hypothesis

A statement that there is no effect or no difference, and it serves as the default assumption to be tested against an alternative hypothesis in statistical analysis.

Doubled Samples

An approach in research where the sample size is increased twofold to improve the statistical power or reduce the margin of error.

Dependent-Samples T Test

A statistical test used to compare the means of two related groups to determine if there is a significant difference between them.