Case Study 9.6: Bentley's Revenge
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Variables: 

     HC        Hydrocarbon (ppm) 
     CO        Carbon Monoxide   (pct of Volume) 
     CO2       Carbon Dioxide    (pct of Volume) 
     DAY       Test Day:   1,2,...,17 
     CON       Condition:  1,2,3,4   
     REP       Replicate:  1,2,3   
     DEV       Device:     0 = Absent 
                           1 = Present (after DAY 6) 
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c96.dat:

day con  rep      hc     co2      co    
 1    1    1    3.69   15.22     .06
 1    1    2    1.62   15.28     .05
 1    1    3    3.58   15.26     .06
 1    2    1    1.38   15.22     .05
 1    2    2    1.23   14.84     .05
 1    2    3    2.85   15.37     .06
 1    3    1    2.12   14.68     .02
 1    3    2    1.41   14.68     .00
 1    3    3     .88   14.75     .00
 1    4    1    8.00   14.74     .03
 1    4    2    9.67   14.76     .06
 1    4    3   12.69   14.74     .05
 2    1    1    5.23   14.92     .05
 2    1    2    6.00   14.95     .06
 2    1    3    3.77   14.94     .04
 2    2    1    8.15   14.95     .07
 2    2    2   15.31   14.98     .07
 2    2    3    5.31   15.18     .05
 2    3    1    1.65   15.60     .04
 2    3    2    4.31   15.39     .03
 2    3    3      NA      NA      NA
 2    4    1   15.15   15.02     .10
 2    4    2   15.54   15.12     .08
 2    4    3   12.31   15.11     .09
 3    1    1    4.23   14.73     .06
 3    1    2     .71   14.86     .05
 3    1    3     .85   14.72     .05
 3    2    1    4.54   14.68     .04
 3    2    2    5.23   14.71     .02
 3    2    3    3.92   14.63     .02
 3    3    1     .15   15.96     .06
 3    3    2     .90   14.22     .01
 3    3    3    4.50   14.42     .02
 3    4    1   15.57   14.46     .06
 3    4    2   13.31   14.51     .08
 3    4    3   14.69   14.60     .09
 4    1    1    2.15   14.25     .05
 4    1    2    4.00   13.80     .05
 4    1    3    5.15   13.62     .06
 4    2    1    4.90   13.61     .04
 4    2    2    6.55   13.53     .03
 4    2    3      NA      NA      NA
 4    3    1     .00   13.96     .02
 4    3    2    3.67   13.89     .04
 4    3    3     .07   13.98     .02
 4    4    1    8.46   13.88     .08
 4    4    2    9.69   13.23     .12
 4    4    3    1.62   13.69     .08
 5    1    1   10.00   13.91     .05
 5    1    2   10.77   13.93     .05
 5    1    3    8.58   14.02     .06
 5    2    1    8.90   14.01     .08
 5    2    2    8.30   14.14     .06
 5    2    3    4.54   14.01     .04
 5    3    1     .31   14.36     .03
 5    3    2    2.31   14.18     .03
 5    3    3    1.00   14.33     .04
 5    4    1   12.69   14.33     .11
 5    4    2   16.23   14.42     .12
 5    4    3   14.46   14.54     .11
 6    1    1    7.54   14.90     .05
 6    1    2    6.69   14.93     .05
 6    1    3    3.92   14.95     .04
 6    2    1    6.92   15.14     .04
 6    2    2    6.54   15.11     .03
 6    2    3    4.69   15.00     .03
 6    3    1    8.69   15.14     .05
 6    3    2    2.85   15.71     .05
 6    3    3    1.77   15.87     .05
 6    4    1   14.31   15.89     .11
 6    4    2   12.38   15.96     .11
 6    4    3   11.38   16.00     .11
 7    1    1      NA      NA      NA
 7    1    2      NA      NA      NA
 7    1    3      NA      NA      NA
 7    2    1   11.23   15.34     .08
 7    2    2    8.46   15.30     .04
 7    2    3    9.77   15.24     .04
 7    3    1    6.77   15.49     .06
 7    3    2    5.38   15.68     .05
 7    3    3    4.85   15.70     .05
 7    4    1   17.85   15.60     .09
 7    4    2   15.62   15.61     .09
 7    4    3   16.77   15.60     .10
 8    1    1    9.69   14.90     .08
 8    1    2    5.38   14.83     .05
 8    1    3    5.00   14.85     .07
 8    2    1    2.15   15.00     .05
 8    2    2    1.15   15.00     .04
 8    2    3    1.15   14.99     .04
 8    3    1    3.31   15.18     .04
 8    3    2    2.77   15.28     .05
 8    3    3    3.00   15.29     .07
 8    4    1    9.38   15.27     .11
 8    4    2    7.08   15.34     .11
 8    4    3    9.31   15.35     .12
 9    1    1    5.00   14.60     .05
 9    1    2    3.46   14.60     .05
 9    1    3    2.92   14.60     .05
 9    2    1    5.31   14.69     .02
 9    2    2    5.08   14.68     .01
 9    2    3    4.46   14.69     .02
 9    3    1    2.08   14.77     .02
 9    3    2    1.36   14.90     .02
 9    3    3     .08   15.04     .02
 9    4    1    7.00   15.08     .11
 9    4    2    4.08   15.05     .09
 9    4    3    2.69   15.06     .08
10    1    1    2.77   15.60     .07
10    1    2     .00   15.55     .02
10    1    3    6.15   15.00     .06
10    2    1     .92   14.94     .02
10    2    2     .38   14.98     .02
10    2    3     .62   14.99     .03
10    3    1    4.00   15.14     .06
10    3    2    3.15   15.31     .03
10    3    3    1.62   15.43     .02
10    4    1    3.46   15.45     .07
10    4    2    4.62   15.52     .07
10    4    3    4.31   15.52     .09
11    1    1    3.23   14.16     .02
11    1    2    3.83   14.23     .05
11    1    3      NA      NA      NA
11    2    1    5.31   14.21     .04
11    2    2   10.23   14.18     .02
11    2    3    3.00   14.29     .03
11    3    1     .46   14.54     .07
11    3    2    5.00   14.31     .08
11    3    3    2.15   14.43     .04
11    4    1    3.54   14.47     .07
11    4    2    3.08   14.57     .10
11    4    3    2.92   14.58     .09
12    1    1    3.15   14.18     .03
12    1    2    1.38   14.18     .03
12    1    3     .46   14.21     .03
12    2    1    2.31   14.16     .03
12    2    2    1.00   14.11     .03
12    2    3    1.46   14.20     .03
12    3    1    3.69   14.56     .06
12    3    2    3.08   14.73     .07
12    3    3    1.77   14.85     .08
12    4    1    1.38   14.86     .07
12    4    2    4.85   14.09     .06
12    4    3    4.15   14.11     .07
13    1    1      NA      NA      NA
13    1    2      NA      NA      NA
13    1    3      NA      NA      NA
13    2    1     .92   14.18     .03
13    2    2     .36   14.19     .03
13    2    3     .15   14.17     .03
13    3    1    5.92   14.72     .06
13    3    2    5.38   15.19     .07
13    3    3    5.71   15.40     .09
13    4    1    3.92   15.48     .08
13    4    2    6.15   15.56     .11
13    4    3    4.54   15.62     .11
14    1    1     .08   14.11     .04
14    1    2    1.77   13.95     .04
14    1    3    1.46   14.11     .04
14    2    1    2.62   13.48     .03
14    2    2    1.69   13.55     .02
14    2    3    3.92   13.53     .03
14    3    1    2.23   14.45     .03
14    3    2    3.46   14.69     .06
14    3    3    7.00   15.08     .05
14    4    1    5.54   13.99     .06
14    4    2    7.62   14.05     .07
14    4    3    8.15   14.17     .06