This Protects Records from Errors That Occur When Two or More

question 37

Multiple Choice

This protects records from errors that occur when two or more users attempt to update the same record simultaneously.

• A)Concurrent update controls
• B)Cross-footing balance test
• C)Data conversion controls
• D)Recalculation of batch totals

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Definitions:

Sample Variance

A measure of the dispersion or spread of a set of data points around their mean, calculated as the sum of the squared deviations from the mean, divided by the number of observations minus one.

Equal-variances Test

A statistical test used to determine if two or more samples have equal variances.

Unequal Variances Test

A statistical test used when comparing two groups that do not assume the variances of the groups are equal.

Normally Distributed

Describes data that follows a normal distribution characterized by a symmetric bell-shaped curve.