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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).
How do you find the population mean for a 95 percent confidence interval?
It depends whether or not the observations are independent and on the distribution of the variable that is being measured or the sample size. You cannot simply assume that the observations are independent and that the distribution is Gaussian (Normal).
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