Answer
Sample 1: 36.5;
Sample 2: 52.5;
Sample 3: 47
Work Step by Step
The rank of 1 is assigned to the lowest value of 70, the rank of 2 is assigned to the next lowest value of 71, and so on. The sum of the ranks from the first sample is
$1+10+12.5+5+8=36.5$
The sum of the ranks for the second sample is $3+14+15+2+12.5+6=52.5$
The sum of the ranks for the third sample is $7+16+10+4+10=47$
