Question

With BIBD, what are you trying to achieve with regard to within-block variability?

Answer 1

In a Balanced Incomplete Block Design (BIBD), the goal is to achieve minimal within-block variability. This means that we want the variability within each block (a group of experimental units) to be as low as possible.

Step-by-step explanation:

In a Balanced Incomplete Block Design (BIBD), the goal is to achieve minimal within-block variability. This means that we want the variability within each block (a group of experimental units) to be as low as possible.

For example, let's say we are conducting an experiment to test different fertilizers on crops. We divide the field into blocks, and within each block, we randomly assign different fertilizers to the plots. By minimizing the within-block variability, we can better assess the effect of different fertilizers without being affected by other factors.

In summary, with BIBD, the aim is to minimize within-block variability to get more accurate and reliable results.