https://nalar.dev/tags/bootstrap/ Recent content in Bootstrap on Nalar Hugo en-us Wed, 02 Sep 2026 00:00:00 +0700 https://nalar.dev/bootstrap-confidence-intervals-with-resampling/ Wed, 02 Sep 2026 00:00:00 +0700 https://nalar.dev/bootstrap-confidence-intervals-with-resampling/ <p>A point estimate hides uncertainty. Reporting that median latency is 180 ms or a conversion-rate difference is 1.4 percentage points does not show how much that estimate might move if another sample were collected.</p> <p>Bootstrap resampling is a practical way to estimate sampling uncertainty when deriving an analytic formula is difficult or when the statistic is not a simple mean.</p> <h2 id="the-bootstrap-idea">The bootstrap idea</h2> <p>Given an observed sample of size <code>n</code>:</p>