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</style></head><body><main><header><p class="label">Fictional experiment / September 1–7, 2026</p><h1>A one-point increase. Not a rollout decision.</h1><p class="intro">Birch-04 tested a more descriptive guide-link label against the existing label for eligible first-time workspace users.</p></header>
<section><h2>The planned metric</h2><p>Completion means opening the guide and finishing the sample task in the assigned session. Assignment unit: user.</p><div class="grid"><article class="card"><p class="label">Control</p><span class="metric">100 / 1,000</span><h3>10% completed</h3></article><article class="card"><p class="label">Treatment</p><span class="metric">110 / 1,000</span><h3>11% completed</h3></article></div></section>
<section class="lead"><h2>Observed difference: +1 percentage point.</h2><p>Supplied analyst interval: -1.7 to +3.7 percentage points. It includes no improvement. This is not evidence of equivalence either.</p></section>
<section class="warning"><h2>Readiness has limits</h2><ul><li>Assignment and logging checks passed according to Jules's supplied review. Detailed check evidence is not included here.</li><li>The interval's confidence level and estimation method need confirmation before wider distribution.</li><li>The load-time guardrail review is pending. No values or acceptable threshold were supplied.</li></ul></section>
<section><h2>What this result does not say</h2><p>There is no approved winner, no supplied subgroup analysis, and no basis here for a broader population claim. The observed absolute change is not a +1 percent relative change.</p></section>
<section class="card"><p class="label">Decision owner · Mina</p><h2>Review the missing evidence before deciding.</h2><ol><li>Obtain the load-time guardrail review.</li><li>Confirm the interval method and confidence level.</li><li>Review uncertainty and record the decision in the experiment system.</li></ol><p>No rollout, extension, new sample target, or decision date is agreed.</p></section>
<section><h2>Source and authority</h2><p>The accompanying fictional analyst notes supply these figures and interpretations. The page does not calculate inference or control an experiment. Full analysis belongs in the authorized experiment system; source URLs were not supplied.</p></section><footer>Fictional worked example by share/artifacts. Names, dates, figures and records are invented for demonstration. Static snapshot; no live data or automatic updates.</footer></main></body></html>