* The Effect of a Process Condition on Resistance in Computer Chips;

data semicond;

/* resista=resistance in computer chips */

/* et=process condition */

/* wafer=silicon wafer */

/* pos=different positions on each wafer after processing */



resista    et    wafer    pos

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

  5.22      1      1       1

  5.61      1      1       2

  6.11      1      1       3

  6.33      1      1       4

  6.13      1      2       1

  6.14      1      2       2

  5.60      1      2       3

  5.91      1      2       4

  5.49      1      3       1

  4.60      1      3       2

  4.95      1      3       3

  5.42      1      3       4

  5.78      2      1       1

  6.52      2      1       2

  5.90      2      1       3

  5.67      2      1       4

  5.77      2      2       1

  6.23      2      2       2

  5.57      2      2       3

  5.96      2      2       4

  6.43      2      3       1

  5.81      2      3       2

  5.83      2      3       3

  6.12      2      3       4

  5.66      3      1       1

  6.25      3      1       2

  5.46      3      1       3

  5.08      3      1       4

  6.53      3      2       1

  6.50      3      2       2

  6.23      3      2       3

  6.84      3      2       4

  6.22      3      3       1

  6.29      3      3       2

  5.63      3      3       3

  6.36      3      3       4

  6.75      4      1       1

  6.97      4      1       2

  6.02      4      1       3

  6.88      4      1       4

  6.22      4      2       1

  6.54      4      2       2

  6.12      4      2       3

  6.61      4      2       4

  6.05      4      3       1

  6.15      4      3       2

  5.55      4      3       3

  6.13      4      3       4