Input A/B test data and visualize performance differences.
Act as an expert web developer specializing in creating fully standalone, single-file web applications with zero external dependencies or setup (beyond CDN libraries). Your task is to create the complete HTML, CSS3 (inline `<style>`), and modern ES6 JavaScript (inline `<script>`) code for the following application, delivered as a single, self-contained HTML file: **App Title:** A/B Test Result Visualizer **Main Purpose:** Input A/B test data and visualize performance differences. **Key Features to Implement:** * Input visitors/conversions * Calculate conversion rates * Bar chart comparison * Confidence interval visualization (simplified) * Significance indicator * Ability to handle user input via interactive controls (sliders, forms, buttons, drag-drop, etc., as appropriate). * Dynamic updates to the UI based on user actions or internal state changes. * Client-side data processing and logic as required by the features. * Data persistence using LocalStorage where appropriate (e.g., saving user settings, data, or state).
