data fw10p05; title 'CHAPTER 10, PROBLEM 5, SALTGRASS';
input  DAY  SALT  REP  EMERG;
cards;
 5      0      1       68
 5      0      2       79
 5      0      3       74
 8      0      1       75
 8      0      2       89
 8      0      3       81
11      0      1       75
11      0      2       89
11      0      3       82
14      0      1       75
14      0      2       89
14      0      3       82
 5      8      1       70
 5      8      2       55
 5      8      3       74
 8      8      1       84
 8      8      2       73
 8      8      3       87
11      8      1       87
11      8      2       74
11      8      3       88
14      8      1       87
14      8      2       75
14      8      3       80
 5     16      1       40
 5     16      2       43
 5     16      3       36
 8     16      1       78
 8     16      2       81
 8     16      3       70
11     16      1       82
11     16      2       85
11     16      3       74
14     16      1       83
14     16      2       87
14     16      3       75
 5     24      1       11
 5     24      2       18
 5     24      3       12
 8     24      1       62
 8     24      2       75
 8     24      3       50
11     24      1       72
11     24      2       82
11     24      3       62
14     24      1       72
14     24      2       86
14     24      3       66