Statistical analysis of mean ALMA Band 6 CBP brightness temperature. Top row: left panel shows the mean values of the mean CBP intensities in the ALMA Band 6 image with corresponding standard errors of 200 randomly chosen equal size CBP sample pairs, with one sample containing CBPs within (red) and the other outside (blue) the CH2. The right panel shows histogram of the largest N for which the relation (1) holds true. Bottom row: left panel shows histogram of the t-test statistic values (t-values) and the right panel shows the histogram of the p-values obtained for the mean values of CBP mean intensities in the ALMA Band 6 image. Individual CBP sample contains 18 randomly chosen CBPs out of the many selected CBPs either within or outside the CH2.