Why Do Firms Need to Create Separate Data Repositories for Their

question 66

Multiple Choice

Why do firms need to create separate data repositories for their reporting and analytics work?

• A) Most firms store their data assets offsite to insure themselves against the possibility of data damage through natural disasters.
• B) Maintaining huge databases can be a cost-sink for most firms.
• C) Most organizations need to differentiate data derived in-house and from data aggregators.
• D) Running analytics against transactional data can bog down a TPS.
• E) Reporting and analytics are two separate functions, each requiring its own separate database specifically formatted to the needs of the management team.

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Definitions:

Mean

The average of a set of numbers, calculated by summing them up and dividing by the number of summands.

Standard Deviation

A measure of the amount of variability or dispersion of a set of values around the mean.

Confidence Interval

A span of numbers, calculated from observed data statistics, that probably encompasses an unknown parameter of a population.

Sample

A group or set collected from a larger population for the purpose of statistical analysis, representing the larger group.