Methods and formulas for the goodness-of-fit statistics for Stability Study for random batches

Select the method or formula of your choice.

S

An estimate of σ, the estimated standard deviation of the error term in the model. Note that s2 is the variance component for error.

R-sq

R2 is also known as the coefficient of determination.

Formula

Notation

TermDescription
yi i th observed response value
mean response
i th fitted response

R-sq (adj)

While the calculations for adjusted R2 can produce negative values, Minitab displays zero for these cases.

Notation

TermDescription
ith observed response value
ith fitted response
mean response
nnumber of observations
pnumber of terms in the model
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