Investigation of the maximum front to back load in the chairs made from curved and modified poplar wood

Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 1 Results of variance analysis of maximum loads related to chairs of various designs

Source	Type III sum of squares	df	Mean square	F	Sig
Corrected model	1.006 × 10^6a	3	335,188.306	36.850	0.000
Intercept	2.042 × 10⁷	1	2.042 × 10⁷	2.245 × 10³	0.000
Treatments	1,005,564.917	3	335,188.306	36.850	0.000
Error	72,768.000	8	9096.000
Total	2.150 × 10⁷	12
Corrected total	1,078,332.917	11

df degree of freedom, F F of statistical table calculated by mean squares (MS), Sig significant levels
^a R ² = 0.933 (adjusted R ² = 0.907)