Two sample Z test of proportions is the test to determine whether the two populations differ significantly on specific characteristics.
One sample Z hypothesis test is one of the basic tests of inferential statistics. It is a parametric procedure for hypothesis testing.
The F-distribution tests equality of variances between two normal populations, and explains its properties and how it relates to the F-test.
Value Stream Analysis is the step after mapping: examining the map to find bottlenecks, wait times, and waste, and turning them into concrete improvements.
Understand what the Coefficient of Contingency is and how it measures the strength of relationships between categorical variables.