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. 2019 Jun 11;19(11):2646. doi: 10.3390/s19112646

Table 4.

Values of the p-values for each gas sensor.

Sensor p-Value
MQ-2 0.000000e+00
MQ-3 0.000000e+00
MQ-4 0.000000e+00
MQ-5 0.000000e+00
MQ-6 0.000000e+00
MQ-7 0.000000e+00
MQ-8 0.000000e+00
MQ-9 0.000000e+00
MQ-135 3.725089e-01
TGS822 9.494413e-02
TGS2600 0.000000e+00
TGS2602 0.000000e+00
TGS2603 0.000000e+00