Statistics · Intermediate · 5 h

Confidence intervals and hypothesis tests

Put error bars on numbers and decide whether a difference between groups is real.

Why employers care: Job descriptions ask for "statistical analysis" and "hypothesis testing". Interviewers test p-values and confidence intervals directly.

In the roadmaps for: Data Analyst, Data Scientist, AI/ML Engineer

Lessons, in order

Confidence intervals and hypothesis testsIs a 1.5 point difference in conversion real? Answer it with a Portuguese bank's 45,211 calls.3 min

Next shelf: Probability and distributions