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Earn +20 ptsQ: 2 categorical independent variable and 1 interval dependent variable statistical test?
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Continue Learning about Statistics
What are statistical levels of measurement?
Three basic levels of measurement are nominal, ordinal, and interval/interval-ratio.
Is year a categorical variable in statistics?
It can be though more often it is a variable on the interval scale (when looking for trends over time).
When do you use poisson probability?
When you have independent events which have a constant probability of occurrence over an interval of space or time.
What are the requirements for Poisson distribution?
Independent events with a constant probability of occurrence over a fixed interval of time (or space).
When can the standard error of the estimate be used to construct a prediction interval about a value y'?
You need the data to be homoscedastic, the errors to be independent. The independent variable(s) should lie within (or very close to) the range of observed values.
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