1. How many evaluators to employee is typical? 1 evaluator to 20 employee's?
2. We use a score of 95% for quality? Is that an industry standard?
3. What do you use for a sample size calc? We use an internally developed tool
I would be happy to share what we do as well.
Citizens Property Insurance (Florida)
I'd start by contacting one of the industry organizations listed here:
For the sample size, you should use a sample that includes a cross-section of the various groups you wish to measure so that you can approximate the population characteristics.
Also, consider the data tools and practices that you are using for analysis, as large samples can start to be cumbersome and difficult to manage.