Poisson Tests Two-Sample

The Two-Sample Poisson Test is used to test if differences exist in Poisson Rates of two independent populations from which the samples were drawn.

Hypotheses

The following hypotheses may be tested:

Poisson-2sample Hyp

Where Lambda1 and Lambda2 are the population Rates from which the samples were drawn.

Assumptions

  • The samples has been randomly drawn from two independent populations (Critical)
  • The populations may be modeled with Poisson distributions (Critical)

Test Statistic

Poisson-2sampleTest

Output

Poisson-2sampleOutput

Note

The p-value is flagged with an asterisk (*) when p <= alpha.