Question: =+analysis as follows: Coded Variable value: 2 1 0 1 2 H2O2 .1 .2 .3 .4 .5 NaOH .1 .2 .3 .4 .5 Silicate .5
=+analysis as follows:
Coded Variable value: –2 –1 0 1 2 H2O2 .1 .2 .3 .4 .5 NaOH .1 .2 .3 .4 .5 Silicate .5 1.5 2.5 3.5 4.5 Temperature 130 145 160 175 190 The data follow:
Obs H2O2 NaOH Silicate Temperature Brightness 1 21 21 21 21 83.9 2 1 21 21 21 84.9 3 21 1 21 21 83.4 4 1 1 21 21 84.2 5 21 21 1 21 83.8 6 1 21 1 21 84.7 7 21 1 1 21 84.0 8 1 1 1 21 84.8 9 21 21 21 1 84.5 10 1 21 21 1 86.0 11 21 1 21 1 82.6 12 1 1 21 1 85.1 13 21 21 1 1 84.5 14 1 21 1 1 86.0 15 21 1 1 1 84.0 16 1 1 1 1 85.4 17 22 0 0 0 82.9 18 2 0 0 0 85.5 19 0 22 0 0 85.2 20 0 2 0 0 84.5 21 0 0 22 0 84.7 22 0 0 2 0 85.0 23 0 0 0 22 84.9 24 0 0 0 2 84.0 25 0 0 0 0 84.5 26 0 0 0 0 84.7 27 0 0 0 0 84.6 28 0 0 0 0 84.9 29 0 0 0 0 84.9 30 0 0 0 0 84.5 31 0 0 0 0 84.6
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