options ls=75 nodate;
data one;
   input name  $ age  sex  $ height  weight;
   cards;
KATIE  12  F  59  95
LOUISE  12  F  61  123
JANE  12  F  55  74
JACLYN  12  F  66  145
LILLIE  12  F  52  64
TIM  12  M  60  84
JAMES  12  M  61  128
ROBERT  12  M  51  79
BARBARA  13  F  60  112
ALICE  13  F  61  107
SUSAN  13  F  56  67
JOHN  13  M  65  98
JOE  13  M  63  105
MICHAEL  13  M  58  95
DAVID  13  M  59  79
JUDY  14  F  61  81
ELIZABETH  14  F  62  91
LESLIE  14  F  65  142
CAROL  14  F  63  84
PATTY  14  F  62  85
FREDERICK  14  M  63  93
ALFRED  14  M  64  99
HENRY  14  M  65  119
LEWIS  14  M  64  92
EDWARD  14  M  68  112
CHRIS  14  M  64  99
JEFFREY  14  M  69  113
MARY  15  F  62  92
AMY  15  F  64  112
ROBERT  15  M  67  128
WILLIAM  15  M  65  111
CLAY  15  M  66  105
MARK  15  M  62  104
DANNY  15  M  66  106
MARTHA  16  F  65  112
MARION  16  F  60  115
PHILLIP  16  M  68  128
LINDA  17  F  62  116
KIRK  17  M  68  134
LAWRENCE  17  M  70  172
;

proc reg;
  model weight=height;
  plot weight*(height predicted.);
run;
/* updated below, Feb 23,2009 */
 
proc reg;
   model height=boy;
run; 
proc ttest;
   class sex;
   var height;
run; 
proc reg;
   model height=age;
run;
proc glm;
   class sex;
   model height=age sex;
run;
proc glm;
   class sex;
   model height=age|sex;
run;