From an experimental design approach, give two ways to decrease the 9. (4 pts) The following results were presented by a researcher who performed pairwise comparisons using Fisher's | on and Tukey's HSD for a CRD with a=3. 2 2 3 1 HSD 3 1 LSD Are these results possible? Explain your answer call the model equation for a RCBD with 5 blocks and a=2 is 245