· beginner
Statistics for Analysts
The statistics an analyst actually uses: which average to report, what a p-value does and does not say, why the group that improved was always going to, and how to tell a finding from a coincidence.
Written in house, from the work rather than from a syllabus. Every example is one we would use ourselves, and every quiz question explains why its answer is right.
What you’ll learn
- Choose between mean and median, and say why the gap between them matters
- Describe uncertainty in a way a decision maker can act on
- State what a p-value means without the four common errors
- Size an experiment before running it, and know why peeking breaks it
- Recognise regression to the mean, survivorship and selection effects
- Separate a correlation worth investigating from one worth ignoring
Before you start
- · Comfort reading a chart and a table of numbers
- · No mathematics beyond arithmetic