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Compare Two Proportions (Unpaired)

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Data input : table with 4 columns :
  - Col 1 = number of Positives in Grp 1
  - Col 2 = number of Positives in Grp 2
  - Col 3 = number of Negatives in Grp 1
  - Col 4 = number of Negatives in Grp 2
Additional 5th column
  - for Risk Difference, Risk Ratio and Odds Ratio
  - column for % confidence of Confidence Interval

Chi Square :   
Fisher's Exact Probability :   
Risk Difference (Standard) :   
Risk Difference (Exact) :   
Risk Ratio (Relative Risks) :   
Odds Ratio :