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StatsToDo : Sequential Unpaired Difference Between Two Counts Program

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Related Links:
Sequential Analysis Introduction and Explained Page
Sequential (Unpaired) Analysis Explained Page
MacroPlot Help Page

Program References
Data

Data is in 4 columns

  • Each row represents data from each consecutive observation in the same study
  • Col 1 = number of subjects x time involved in group 1(n1)
  • Col 2 = number with events encountered in group 1(k1)
  • Col 3 = number of subjects x time involved in group 2(n2)
  • Col 4 = number with events encountered in group 2(k2)
Click button to run program using example data,
or replace example data with real data and click button to run.
Probability of Type I Error (α) (two tail)
Power (1 - β)
Expected mean count in group 1 (λ1=k1 / n1)
Expected mean count in group 2 (λ2=k2 / n2)
Ratio of sample size in the 2 groups(n1/n2)

MacroPlot Code




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