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Wald's Sequential Probabilty
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THIS PROCEDURE IS NOW MOBILE FRIENDLY

Give two proportions
and the number of experiments.

Lower
proportion
Higher
proportion
Alpha
error
Power
Experiments



Sequential Probability Ratio Test (SPRT).
Cases are collected one at a time, and
after each case is collected a total
proportion is calculated and compared
with previously defined upper and
lower values of no differences. After
that a decision is made to accept or
to reject the null hypothesis of the
total proportion being inside the
predefined values or to continue
testing.