Which of the Following Statements Is True of Data Marts

question 104

Multiple Choice

Which of the following statements is true of data marts and data warehouses?

• A)Consolidating information from different departments is easier in data marts than in data warehouses.
• B)Data marts have more extended scope than data warehouses.
• C)Access to data is often slower in data marts than in data warehouses.
• D)Despite being smaller,data marts can usually perform the same type of analysis as data warehouses.

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Definitions:

Sample Proportion

The ratio of members in a sample that have a particular attribute to the total number of members in that sample.

Test Statistic

A value calculated from sample data during a hypothesis test that determines whether to reject the null hypothesis.

Approximately Normal

Describes data that roughly follows a normal distribution, though it may not perfectly fit the normal curve.

Z Test Statistic

A type of statistical test where the test statistic follows a normal distribution under the null hypothesis.