Listed below are full IQ scores from simple random samples of subjects with low lead exposure, medium lead exposure, and high lead exposure. In using the Kruskal-Wallis test, we must rank all of the data combined, then we must find the sum of the ranks for each sample. Find the sum of the ranks for each of the three samples.

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Low Lead Level 70 85 86 76 84 Medium Lead Level 72 90 92 71 86 79 High Lead Level 82 93 85 75 85