A laboratory is analyzing and reporting samples on a continual basis. Historical data for the analysis of spiked samples established that P(ave) =98, and sp = 4%; the control chart limits are P(ave) (ie. percent recovery) +/- 3sp, or 86% and 110%. A sample with a measured background level (Bi) of 22 mg/l was spiked with the equivalent of 30 mg/l without appreciably changing the sample volume. The result for the spiked sample (Ai) was 49.2 mg/l. Calculate Pi and determine if it falls with the control chart limits.