The Time Series Component That Reflects Variability Over Short Repetitive

question 154

Multiple Choice

The time series component that reflects variability over short repetitive time periods and has duration of less than one year is called:

• A)long-term trend
• B)cyclical variation
• C)seasonal variation
• D)random variation

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Definitions:

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Kruskal-Wallis Test

A nonparametric method for testing whether samples originate from the same distribution, useful when the assumption of normality in ANOVA is violated.

One or Two-tail Test

A statistical hypothesis test that can assess whether there is evidence for an effect in either direction (two-tailed) or in a specified direction (one-tailed).

Significance Level

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