Example 4-1: Fictitious data for conditional and marginal
  model formulation discussion
 
Block      Treatment    F      N       Y1       Y2
------------------------------------------------------
  1           0        86     100     21.3     39.5
  1           1        98     100     10.0     30.0
  2           0        48     100     19.7     32.6
  2           1        93     100     22.0     33.6
  3           0        87     100     20.2     32.1
  3           1        43     100     17.6     38.8
  4           0        64     100     20.0     41.9
  4           1        89     100     16.0     35.1
  5           0        99     100     17.4     29.1
  5           1       100     100     20.3     34.1
  6           0        52     100     26.0     42.9
  6           1        49     100     25.6     31.8
  7           0        89     100     19.7     40.8
  7           1        96     100     16.2     28.2
  8           0        63     100     18.5     40.9
  8           1        98     100     12.4     38.1
  9           0        48     100     20.9     39.5
  9           1        83     100     13.5     34.7
 10           0        85     100     23.0     42.0
 10           1        97     100     23.2     32.8