[Stack 15/27] Fix D9: z-score thresholds from two-tailed to one-tailed#2446

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jucor wants to merge 7 commits into

jc/fix-test-db-connectionfrom

jc/clj-parity-d9-fix

Commits on Mar 30, 2026

Plan: add task parallelization analysis for remaining fixes

jucor
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claude
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Fix D9: match Clojure z-sig semantics (strict >, no abs) and remove dead stats.py

jucor
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claude
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Re-record vw golden snapshot after D9 z-sig semantics change

jucor
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claude
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Update plan: mark D9 as done, note stats.py removal for next PR

jucor
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claude
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Add mathematical rigor and exhaustive testing guidance to fix plan

jucor
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claude
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Plan: move PR 14 earlier (prerequisite for blob tests) + add handoff doc

jucor
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claude
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Re-record golden snapshots after upstream cascade

jucor
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claude
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