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<br /> <br />Statinical Sampling for Envirotunenul Monitoring Studies: OSM11 Once ofTechnology Transfer. 1998 Ch. ?CI Pg. 5 <br />18^ <br />16 <br />,,14 <br />L` .:. <br />;m 12 <br />:::~-.r <br />m :.. <br />°0 19 <br />a <br />E <br />,o <br />~.8 <br />o. <br />E . <br />r 6 <br />0 <br />LL <br />4 <br />2 <br />,. <br />~omposrt <br />sample number <br />,.. , . e <br />,.. >. . <br />__. k <br />Figure 2. Plot of composite mean SAR (diamonds) and k--4 times the composite mean <br />(squazes) against composite sample number. The horizontal line represents the OSM suitability <br />criteron. When k times the sample mean is below the suitability threshold, all individual <br />observations are guaranteed to be below threshold. When the mean is above threshold, at least <br />one sub-sample is guaranteed to be above threshold. When the mean is be]ow threshold and, k <br />times the mean is above threshold, the maximum value may be above or below threshold <br />