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Examples for Confidence Interval Calculator & Interpreter
Explore real-world examples showing how this skill works with different inputs and outputs.
Checkout System Time Reduction Analysis
Comparing checkout times between old and new systems using Welch's t-test for difference in means. Shows 95% CI for time reduction with effect size (Cohen's d), statistical significance testing, and business impact calculations for deployment decision.
Email Campaign Open Rate Analysis
Calculating a 95% confidence interval for email campaign open rate using Wilson score method. Demonstrates proportion CI with clear business interpretation comparing to industry benchmarks and actionable recommendations for optimization.
Customer Support Resolution Time with 90% CI
Single mean confidence interval for customer support resolution times using t-distribution with small sample (n=28) and non-default 90% confidence level. Includes sample size planning guidance and SLA recommendations based on uncertainty estimates.