When Extreme Values Are Present in a Set of Data,which

question 147

Multiple Choice

When extreme values are present in a set of data,which of the following descriptive summary measures are most appropriate:

• A)CV and range.
• B)arithmetic mean and standard deviation.
• C)interquartile range and median.
• D)variance and interquartile range.

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Definitions:

Two-tailed Test

A statistical test that allows for the exploration of relationships in both directions, enabling the detection of significant differences regardless of the direction.

Significant

Pertaining to results in statistical analysis, significant means the findings are unlikely to have occurred by chance and indicate a real effect or relationship.

Z-statistic

A statistical measure that quantifies the difference between a sample statistic and its population parameter, measured in units of the standard deviation.

Z-test

A statistical test used to determine whether there is a significant difference between the mean of a sample and the mean of a population, or between the means of two populations.