A New Heat Insulation Shotcrete Mixed with Basalt and Plant Fibers

Table 7

Analysis of variance of compressive strength.

Factors	SS	f	MS	F	Significance	Critical value	SSP	Contribution rate
A	20.5	2	10.25	102.5	Particularly significant	F0.1(2,2) = 9; F0.01(2,2) = 99; F0.05(2,2) = 19	20.3	18.47
B	55.1	2	27.55	275.5	Particularly significant		54.9	49.95
C	23.3	2	11.65	116.5	Particularly significant		23.1	21.02
D	11	2	5.5	55	Significant		10.8	9.83
Error	0.2	2	0.1				0.8	0.73
Total	110.1	8					109.9

Note. SS indicates the sum of squares of deviations, f indicates the degree of freedom, MS indicates standard deviation, and SSP indicates total pure sum of squares. F > F_0.01(2,2) = 99 indicates that this factor has a particularly significant impact on the evaluation index. F_0.05(2,2) = 19 ≤ F ≤ F_0.01(2,2) = 99 indicates that this factor has a significant impact on the evaluation index. F_0.1(2,2) = 9 ≤ F ≤ F_0.05(2,2) = 19 indicates that this factor has some impact on the evaluation index. F ≤ F_0.1(2,2) = 9 indicates that this factor has a small impact on the evaluation index. This notation is also suitable for subsequent tables showing analysis of variance results.