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StatsToDo: Squential Analysis of Two Unpaired Groups for Means (by Whitehead)

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MacroPlot Resources
Explanations Example Javascript Program

Calculations for Sequential Analysis for Two Unpaired Means

Data is in 6 columns
  - Rows represent data from consecutive observations
  - Col 1 to 3 = n, mean, sd of group 1
  - Col 4 to 6 = n, mean, sd of group 2
Probability of Type I Error (α) (one tail)
Power (1 - β)
Expected Difference Between Means
Within Group (Population) Standard Deviation
Expected Ratio of Sample Size in the 2 Groups(ratio=n1/n2)
MacroPlot Code