An Optimization Method for the Geolocation Databases of Internet Hosts Based on Machine Learning

Table 6

The results of paired-samples -test for the geolocation database IP138.

(a) Paired-samples statistics

	Mean		Std. deviation	Std. error mean
Pair 1
Before	.80100	10	.002000	.000632
After	.98200	10	.010770	.003406

(b) Paired-samples test

	Paired differences
	Mean	Std. deviation	Std. error mean	95% confidence interval of the difference			df	Sig. (2-tailed)
				Lower	Upper
Pair 1
Before − after	−.181000	.011353	.003590	−.189121	−.172879	−50.416	9	.000