Sequential Design CDF [Power / Sample Size]

posted by APFlores – Philippines, 2014-06-23 10:14 (4378 d 15:33 ago) – Posting: # 13119
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Hi! I'm working on an Excel project that would calculate Power for a sequential BE, based on the journal from Potvin, et al. Unfortunately, I couldn't exactly replicate the calculation of Power at stage 1, as the =NORMSDIST(x) function seemed to be incorrect for this purpose. If anyone could give me the equation for the cumulative dist. function for student's t-dist (given x and DF), I will appreciate it very much.

Kind regards,
Aflores

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