+ x2 +
... + xn). Unlike
the corrected sum of squares, the uncorrected sum of squares includes
error. The data values are squared without first subtracting the mean.
Squares each value in the column, and computes the sum of those squared
values. That is, if the column contains x1,
x2, ... , xn,
then sum of squares calculates (x1 + x2 +
... + xn). Unlike
the corrected sum of squares, the uncorrected sum of squares includes
error. The data values are squared without first subtracting the mean.
In Minitab, you can use descriptive statistics to display the uncorrected sum of squares (choose Stat > Basic Statistics > Display Descriptive Statistics). You can also use sum of squares (SSQ) function in the Calculator to find the uncorrected sum of squares for a column or row. For example, you are calculating a formula by hand and you want to obtain the sum of the squares for a set of response (y) variables.
Choose Calc > Calculator and enter the expression:
SSQ (C1)
Store the results in C2 to see the sum of the squares, uncorrected.
|
C1 |
C2 |
|
y |
Sum of squares |
|
2.40 |
41.5304 |
|
4.60 |
|
|
2.50 |
|
|
1.60 |
|
|
2.20 |
|
|
0.98 |
|
|
Note |
Missing values are omitted from the calculation of this function. |