Selection and Optimization of University English Teaching Path Based on Knowledge Distillation and Transfer Learning

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Single sample T test results

	Test value=1.72
	t	Degree of freedom	Sig.(two-tailed)	Mean difference	95% confidence interval for the difference
					Lower limit	Upper limit
Inter group	-0.204	145	0.857	-0.016	-0.17	0.12

The personal information of the experimental subjects

Background information		Experimental class		Control class
		Number	Percentage	Number	Percentage
Gender	Male	34	36.96%	20	37.04%
	Female	58	63.04%	34	62.96%
Nationality	The Han Nationality	75	81.52%	43	79.63%
	Minority Nationality	17	18.48%	11	20.37%
Place of student source	The north	91	98.91%	54	100.00%
	The south	1	1.09%	0	0.00%
College entrance examination results	50-89 points	70	76.09%	42	77.78%
	90-150 points	22	23.91%	12	22.22%

Statistical analysis of paired samples before and after testing

		D1	D2	D3	D4	Total	Number	Standard deviation	Standard error
Pretest	Experimental class	65.12	71.09	56.89	74.53	66.91	92	9.423	1.476
	Control class	63.64	69.24	58.13	73.96	66.24	54	8.205	1.215
Posttest	Experimental class	78.57	86.35	71.37	86.52	80.70	92	7.341	1.027
	Control class	70.21	76.42	62.44	80.11	72.30	54	8.256	1.234

Paired sample T-test for pretest and posttest

			Paired difference			t	Sig.(2-tailed)
			Mean	Std. deviation	Std. error mean
Experimental class	D1	Pretest and posttest	-13.45	1.421	0.241	3.147	0.000
	D2	Pretest and posttest	-15.26	1.714	0.197	4.274	0.000
	D3	Pretest and posttest	-14.48	2.047	0.259	-2.716	0.000
	D4	Pretest and posttest	-11.99	1.892	0.264	-4.207	0.000
Control class	D1	Pretest and posttest	-6.57	4.125	0.755	4.815	0.085
	D2	Pretest and posttest	-7.18	5.264	0.761	-5.143	0.073
	D3	Pretest and posttest	-4.31	3.973	0.804	-3.459	0.104
	D4	Pretest and posttest	-6.15	4.677	0.825	-4.531	0.096

Independent sample T-test for pretest and posttest

	Dimension	Levin’s test for equality of variances				T-test
		Assuming	F	Sig.	t	Sig.(2-tailed)	95% confidence interval of the difference
							Lower limit	Upper limit
Pretest	D1	Equal variances	3.315	0.081	0.145	0.715	-3.527	4.024
	D2	Equal variances	4.232	0.079	0.156	0.637	-4.135	3.859
	D3	Equal variances	2.964	0.093	0.189	0.741	-2.958	3.421
	D4	Equal variances	3.109	0.105	0.195	0.822	-3.763	4.325
Posttest	D1	Equal variances	2.942	0.089	2.943	0.007	-6.942	-2.354
	D2	Equal variances	3.857	0.094	3.127	0.000	-7.257	-2.678
	D3	Equal variances	2.645	0.132	3.481	0.003	-8.104	-2.593
	D4	Equal variances	3.054	0.103	2.894	0.018	-7.109	-1.742

Difference test of background variables between experimental class and control class

		Sum of squares	Degree of freedom	Mean square	F	Significance
Gender	Inter group	0.067	1	0.067	0.236	0.648
	Within group	34.185	144	0.258
	Total	34.264	145
Nationality	Inter group	0.253	1	0.239	1.305	0.272
	Within group	25.144	144	0.181
	Total	25.316	145
Place of student source	Inter group	0.008	1	0.008	0.042	0.841
	Within group	28.641	144	0.214
	Total	28.657	145
College entrance examination results	Inter group	0.152	1	0.152	0.224	0.654
	Within group	91.246	144	0.694
	Total	91.383	145