Back weight (X)

Chest weight (Y)

Rank for X

Rank for Y

D (Xi - Yi)

D2

365.0

479.5

4

7

−3

9

381.0

401.5

6

5

1

1

256.0

346.5

1

2

−1

1

367.5

403.0

5

6

−1

1

350.5

380.0

3

4

−1

1

257.5

334.0

2

1

1

1

402.0

377.5

7

3

4

16