Managed by Sparky Anderson, the Reds of the 1970s were a virtual Hall of Fame gallery with Rose, Joe Morgan, Johnny Bench and Tony Perez. This team won back-to-back world championships (1975-76), four pennants and six division titles. Four Reds won Most Valuable Player awards.
Pooled standard deviation is a way to find a better estimate of the true standard deviation given several different samples taken in different circumstances where the mean may vary between samples but the true standard deviation (precision) is assumed to remain the same. It is calculated by. or with simpler notation,
Thread: Pooled sample. I want to discuss why and when one should use pooled sample. Pooled samples are generally used to save on analysis time and costs by reducing the number of samples six-fold. I personally don't like the practice, as it can hide flawed tablet results by averaging them with other units. It also doesn't have any account for variability of batches.