exam 2 problem 3                             1

               Obs    subject         diet           z     y

                 1        1      d1:soy protein      9    30
                 2        2      d1:soy protein      8    27
                 3        3      d1:soy protein     16    42
                 4        4      d1:soy protein     -3     4
                 5        5      d1:soy protein     17    47
                 6        6      d1:soy protein     13    41
                 7        7      d1:soy protein      8    17
                 8        8      d1:soy protein      5    28
                 9        9      d1:soy protein     15    46
                10       10      d1:soy protein      9    31
                11       11      d2:oatmeal         11    20
                12       12      d2:oatmeal         10    31
                13       13      d2:oatmeal          7    17
                14       14      d2:oatmeal         13    46
                15       15      d2:oatmeal          2    12
                16       16      d2:oatmeal         10    35
                17       17      d2:oatmeal          8    28
                18       18      d2:oatmeal         20    50
                19       19      d2:oatmeal         11    36
                20       20      d2:oatmeal          4    21
                21       21      d3:nothing         13    31
                22       22      d3:nothing         15    38
                23       23      d3:nothing          9    15
                24       24      d3:nothing         12    31
                25       25      d3:nothing          8    30
                26       26      d3:nothing          7    31
                27       27      d3:nothing          8    12
                28       28      d3:nothing         14    21
                29       29      d3:nothing         20    34
                30       30      d3:nothing          7    10