There SAS applications/procedures/features were not necessarily available since 2012. This year I paid special attention to them when began to use SAS 9.3. The following notes are totally my personal endorsement purely based my own experience as a user: XML File Reading: SAS XML Mapper SAS XML Mapper itself is not an elegant tool from […]
Tag: t-test
Statistical Notes (2): Equivalence Testing and TOST (Two One-Sided Test)
Programmers Need to Learn Statistics Or I will Kill Them All –Zed A. Shaw In an equivalence testing example against lognormal data, a TOST (Two One-Sided Test) option used in SAS TTEST procedure: proc ttest data=auc dist=lognormal tost(0.8, 1.25); paired TestAUC*RefAUC; run; And the output: Since the 90% (who not 95%? see below) limit of […]
Example 8.34: lack of robustness of t test with small n
Tim Hesterberg has effectively argued for a larger role for resampling based inference in introductory statistics courses (and statistical practice more generally). While the Central Limit Theorem is a glorious result, and the Student t-test remarkabl…
This is your Science Fair, on SAS
Last week I talked about how I volunteered to serve as a judge for a middle-school science fair. As I expected, I enjoyed the experience quite a bit, and I hope the students got something positive from me as well. I evaluated several really impr…