Research Article

Mathematical Analysis of the Effect of Iron and Silica on the Reduction Performance of Manganese Ores

Table 11

Effect of total iron (), silica (), and their interaction () on .

Source of varianceThe average effectSum of square (SS)Mean square (MS)
(MS = SS/degree of freedom)
Magnitude effect, 
(MSVariance/)

−812812810.24
−6481928192655.36
−1020020016
Error5012.5

Total8570