* Peanut Butter Aflatoxin;

data pbutter;



lab  sample  aflatox

--------------------

  1     1       13

  1     2        9

  2     1        6

  2     2        6

  4     1        9

  4     2       16

  6     1        7

  6     2        9

  7     1        6

  7     2        6

  8     1        8

  8     2        7

  9     1       15

  9     2        9

 10     1        6

 10     2        6

 11     1        8

 11     2        9

 12     1        6

 12     2        5

 13     1        7

 13     2       13