self-confidence data chart This chart provides the raw data for the 6 participants and it provides the sum of squares. The sum of the raw scores and the mean of the raw scores must be determined (you will be asked for these in subsequent questions). Self-confidence scores ofcurrentseniorciass i, X _)? (X X)2 5 -1.5 2.25 6 -0.5 0.25 7 0.5 0.25 6 -0.5 0.25 7 0.5 0.25 8 1.5 2.25 xx: 55 = (X 2?)2 = 5.50