Question: how to calculate the least significant difference?
Answer: Step 2: Insert the given values, the MSE from your results (I used 26.65 from Within groups on the above table) the t-distribution value from Step 2 into the least significant difference formula: LSD = 2.028 √ (26.65 * (2/10)) = 4.68. Put this number aside for a moment, Step 3: Calculate ybar1-ybar2 from the results.