The dialog box for s1.
Note the Associate with Data Name is Cp. Also note, the equation s1 = q1/V. That is, sample 1 (s1) is q1/V.
The dialog box for s2.
Note the Associate with Data Name is U.
The information in the Data Window looks like:
DATA
(FSD 0.1)
t Cp
0.80 19.90
1.00 16.82
1.50 16.77
2.00 15.09
2.50 15.51
3.00 13.08
4.00 12.58
5.00 11.39
6.00 9.95
9.00 7.14
12.00 5.86
END
DATA
(SD 2.5)
t U
1.00 9.3
2.00 18.3
4.00 35.8
6.00 58.8
9.00 66.9
12.00 81.3
24.00 102.3
36.00 126.8
48.00 127.7
END
Notice that the table headings are t Cp and t U matching the Data Names defined above for Cp and U. Also notice that different weighting schemes or value are possible.