Refer to Exercise 15.8.
a. Describe how the four fertilizer placement€“ rate combinations are randomly assigned to the rows and columns in the farm plot.
b. Compute the relative efficiency of the Latin square design compared to a com­pletely randomized design. Were the row- and column- blocking variables effective in reducing the variability in the responses from the experimental units? Justify your answer.
c. If future studies were to be conducted, would you recommend using both rows and columns as blocking variables? Explain your answer.
In exercise

Transcribed Image Text:

Column Row 11 1.75 3 143 4 128 2 166 2 1.70 1 178 140 4 131 3 4 135 2 1.73 1 169 3 141 4 3 145 4 13 2165 1 173