Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
Drexel University or The Math Forum.


Luis A. Afonso
Posts:
4,743
From:
LIsbon (Portugal)
Registered:
2/16/05


Re: NoNull HST . . .
Posted:
Feb 19, 2013 8:39 AM


Therefore my Feb 19, 2013 5:34 AM Post, third in this thread should be read as (so sorry . . .):
It was shown, by two different procedures (Bootstrap and IntraPermutations that the length difference between female and male spider was, in mean values, 2.21 mm.
__a) For alpha = 5% we have:
_______________________________________ ______________0______1.76____2.21_________Intra  Permut. _____________________1.747___2.210________Boots
__b) For alpha = 1% we have:
_______________________________________ ______________0____1.63_____2.21____________IntraPermut. ___________________1.600____2.210___________Boots
It was fine, I mean, that People  against  NHST get aware how wrong are: in fact it´s easy to conclude that at least one can warrant that the difference are AT LEAST 1.76mm (1.747) with 95% probability and 1.63 (1.60) with 99% . . . By the reasons yet indicated the IntraPermutation method because do not distorts data (contrarily to Bootstrap) is candidate to be the better (preferable) one. It is true that they show (almost) complete concordance.
Luis A. Afonso



