Timeline for R - power.prop.test, prop.test, and unequal sample sizes in A/B tests
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
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| Feb 8 at 4:07 | comment | added | Javid Jamae | @Underminer Nearly a decade later, but... sounds like your suggestion would be a great second answer to provide for this question. :-) | |
| Feb 10, 2015 at 23:31 | history | edited | Javid Jamae | CC BY-SA 3.0 |
added image from the page I linked to
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| Feb 10, 2015 at 19:08 | comment | added | Underminer | "If you do a 95/5 split, then it'll just take longer to hit the minimum sample size for the variation that is getting the 5%." - while this is a conservative approach to at least satisfying the specified power of the test, you will in actuality be exceeding the specified power entered in power.prop.test if you have one "small" and on "large" group (e.g. n1 = 19746, n2 = 375174). A more exact method of meeting power requirements for unequal sample sizes would likely be desirable. | |
| Sep 4, 2014 at 4:26 | history | edited | Javid Jamae | CC BY-SA 3.0 |
Used blockquote instead of bold to repeat the questions..
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| Sep 4, 2014 at 1:36 | comment | added | Glen_b |
Javid, when you quote part of the question in your answer, you might consider using the markup intended to indicate a block quotation (> at the start of the quoted block) rather than just bolding it.
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| Sep 4, 2014 at 1:24 | review | First posts | |||
| Sep 4, 2014 at 1:36 | |||||
| Sep 4, 2014 at 1:10 | history | answered | Javid Jamae | CC BY-SA 3.0 |