Table 5 Differences in consciousness about the ambiguity of the measurement of the root diameter of landscape trees among the plactitioner of planting construction, in s. Korea.(one-way, ANOVA)

Division	Average	Standard deviation	Significance probability
By age	3.86	0.788	0.834
By occupation	3.88	0.823	0.803
By job type	3.88	0.826	0.720
By job position	3.83	0.844	0.035*
By working area	3.58	0.846	0.186
By work experience	3.76	0.676	0.710

P <0.05