Problem 5.7.8
Treatment  Rat           Perlid of lactation      \\ 
group   number  8-12  12-16  16-20  20-24  Average \\ 
 
             1   7.5   8.6   6.9   0.8   5.95 \\
             2  10.6  11.7   8.8   1.6   8.18 \\
             3  12.4  13.0  11.0   5.6  10.50 \\
             4  11.5  12.6  11.1   7.5  10.68 \\
             5   8.3   8.9   6.8   0.5   6.12 \\
             6   9.2  10.1   8.6   3.8   7.92 \\ 
average         9.92  10.82 8.87  3.30   8.23 \\ 
nonpregnant  1  13.3  13.3  12.9  11.1  12.65 \\
             2  10.7  10.8  10.7   9.3  10.38 \\
             3  12.5  12.7  12.0  10.1  11.82 \\
             4   8.4   8.7   8.1   5.7   7.72 \\
             5   9.4   9.6   8.0   3.8   7.70 \\
             6  11.3  11.7  10.0   8.5  10.11 \\ 
average         10.93 11.13 10.28 8.08   9.17 \\ 
period and
overall average 10.42 10.98 9.58  5.69   9.17 \\