The Standard deviation obtained in house method verification study must be compared to precision found in the colloborative study. The aim of this study is to demostrated that the result produced by laboratory is acceptable (method verification). That mean my standart deviation must be smaller or equal than found in the colloborative study
So, I decided to use “F test . What should i do? One sided “F” test or two sided “F” test
Thaks in advance
So, I decided to use “F test . What should i do? One sided “F” test or two sided “F” test
Thaks in advance