Methods Coefficients b0                       b1            Standard Error b0               b1          ML ML (Influential observations removed ) -6.8451            1.8271      (=38.9405) -59.62               17.46      (=29.1415) 2.7703      0.9009   45.51       13.50 BY c=1.25     -8.3774            2.2870 (=37.0421)   5.4383      1.6632 New method c=0.5 -60.5094          17.7654 (=29.2719) 49.7325   14.7409

Table 2: Parameter Estimates for Plasma Data Using ML, BY and New Robust Method.