Statistics Meeting Book (May 17, 2017)

Item #

Discussion/Action Item

Person Responsible

Updated information on progress as noted next to names above. Paul has been in contact with Jane and Qian had created a useful shortcut to retain most of the spreadsheet content and then replace the equations for the check.

Ref: Copy of AOAC Micro Stats Preview v1.0 Workshop Demo.xlsx

b. Changes to Appendix J -Paul Wehling & Robert LaBudde (Leads) Update: ongoing. c. Chi-Square Test Calculator -All http://lcfltd.com/AOAC/aoac-binary-v2-5.xlsx Update : ongoing d . Revising our committees’ TOR (OMB requested) Deborah had a meeting conflict so no update from her office. The discussion on meeting quorum and subsequent action-approvals continued and was initiated by Qian. She gave a few examples of possible vote/approval outcomes using various cutoffs based on possible meeting attendance. Robert asked Mike if he accumulated the attendance for past meetings as requested. This was sent earlier to Delia for reference and not the committee. Mike had some missing Minutes so the list included 17 meetings from March 2015 – March 2017 (mean 6.6, median 7 n=17). After various numerical examples used by Qian, Paul and Robert, the idea arose to potentially use a survey to solicit voting on action items so as to include committee members not in attendance but still interested in voting. Therefore, the current remedy is to ask Delia to consider amending the TOR to permit a meeting motion to broadcast to the Committee a paper/email ballot for voting on the pending action and thereby engage the entire Committee. e Intermediate Precision Working Group - Paul Wehling /Robert LaBudde/Jane Weitzel/Sidney Sudberg (Leads) Sidney will organize and send a few notes from meeting. Paul then referenced the review of ISO 5725-3-1994 to consider. Qian commented that she sometimes has problems with merging data from such studies that do not conform to a set format over time. She gave an example of milk or perhaps other materials for analysis that are subject to temperature affects due to shipping and local environment. Thus, the effects increase the number of factors to account for after initiation of a study. Sidney said indeed those factors need study and Robert commented that factors with big variations need to be considered by the designer of the experiment at an earlier stage for the study to be a useful exercise. Sidney said these points would be discussed at the next subcommittee conference call, shortly.

Committee McKenzie

Wehling LaBudde Weitzel Sudberg

2