Table 5 Statistical significance test results.

From: Urban virtual environment landscape design and system based on PSO-BP neural network

Location

Sample size

Mean

Standard deviation

t value

P value

Bell and Drum Tower Square

Transformation of the former

90

82

8.5

4.57

0.03

After transformation

90

88

6.7

Yanta East Garden

Transformation of the former

92

57

12.1

5.83

0.02

After transformation

92

67

10.3

West Street

Transformation of the former

93

51

14.0

7.11

0.04

After transformation

93

66

11.8