Statistical and Experimental Investigation of Hardened AISI H11 Steel in CNC Turning with Alternative Measurement Methods

Table 8

Analysis of variance for sound intensity level.

Source	DF	Adj SS	Adj MS	F value	value	Contr. %
	1	0.56889	0.56889	49.04	≤0.001	24.88
	1	1.02722	1.02722	88.54	≤0.001	44.92
F	1	0.40500	0.40500	34.91	≤0.001	17.71
	1	0.06000	0.06000	5.17	0.036	2.62
	1	0.01500	0.01500	1.29	0.271	0.66
	1	0.00167	0.00167	0.14	0.709	0.07
	1	0.00750	0.00750	0.65	0.432	0.33
	1	0.00333	0.00333	0.29	0.599	0.15
	1	0.00083	0.00083	0.07	0.792	0.04
Error	17	0.19722	0.01160	—	—	8.62
Total	26	2.28667	—	—	—	100.00

Significant P values are marked in bold.