Investigation of Fire-Fighting Evacuation Indication System in Industrial Plants Based on Virtual Reality Technology

Table 4

Standard error and significance of reaction time between two different frequencies.

Frequency (Hz)	Mean difference (I−J)	Standard error	Significance (np^2)
1–15	1.17063	0.43753	0.008
1–30	2.06119	0.43753	0.000
15–30	0.89056	0.43753	0.044

Note. The significance level of the mean difference is 0.05.