[Retracted] Design of College English News Listening Teaching System Based on Improved SPOC by using IoT

Table 2

Paired sample -test table of test scores before and after the application study.

Compositional difference						df	Sig
			95% confidence interval for difference
Mean value	Standard deviation	Standard error of mean	Upper limit	Lower limit
Before research	7.31	56	1.542	-15.396	-4.514	54	0.000