The table given below show the yield of a certain crop in kgs per polt. The letters \( A, B, C, D \) refer to 4 different manorial treatments carry out an analysis of variance.
\begin{tabular}{|l|l|l|l|}
\hline \( A 260 \) & \( B 300 \) & \( C 335 \) & \( D 371 \) \\
\hline \( B 280 \) & \( A 300 \) & \( D 300 \) & \( C 410 \) \\
\hline \( D 320 \) & \( C 345 \) & \( B 340 \) & \( A 254 \) \\
\hline \( C 372 \) & \( D 395 \) & \( A 290 \) & \( B 328 \) \\
\hline
\end{tabular}
In the table given below are the yields of 6 varieties of a crop in a 4 replicate RBD experiment