Econometric Modelling of the Variations of Norway’s Export Trade across Continents and over Time: The Two-Stage Non-Full Rank Hierarchical Linear Econometric Model Approach

Table 2

Decomposition of sum of squares and their distributional properties.

Source of variation	Formal formula	Simplified form	Degree of freedom	Distribution
		bn
SSE
SST

Sum of the squares about the mean = , regression sum of squares = , sum of squares of the nesting factor = , sum of squares of the nesting factor after fitting the mean = , sum of the squares of the nested factors after fitting the nesting factor and the mean = , sum of the squares after fitting the mean = , error sum of squares = SSE, and total sum of squares = SST.