I wonder if Google has an analytical models to try to understand what makes candidates successful in their company. 1 of 2 new hires leaving is a problem.
You can't really draw any valid conclusions from a sample size of two. The fact that this happened with the two employees who Rachel interviewed doesn't give us any information about what the attrition rate of new employees at Google is.
You can draw valid conclusions. You just need a very wide confidence interval. If p=.05, we can assume that the real attrition rate is between about 2.5% and 97.5%.
