Đánh giá kết quả trồng rừng phòng hộ giai đoạn 2011 - 2015 tại huyện Yên Minh, tỉnh Hà Giang - 13

N

Mean

Std.

Deviation

Std. Error Mean

D0 1

2

11

13

2.1455

2.0615

.40587

.37314

.12237

.10349

Levene's Test for Equality of Variances

t-test for Equality of Means

F

Sig.

t

df

Sig. (2-tailed)

Mean Difference

Std. Error Difference

95% Confidence Interval of the Difference

Lower

Upper

D0 Equal variances assumed

Equal variances not assumed

.050

.825

.527

.524

22

20.627

.603

.606

.08392

.08392

.15910

.16027

-.24603

-.24974

.41387

.41758

N

Mean

Std.

Deviation

Std. Error Mean

D0 1

3

11

12

2.1455

2.1667

.40587

.26742

.12237

.07720

Levene's Test for Equality of Variances

t-test for Equality of Means

F

Sig.

t

df

Sig. (2-tailed)

Mean Difference

Std. Error Differen ce

95% Confidence Interval of the Difference

Lower

Upper

D0 Equal variances assumed

Equal variances not assumed

1.848

.188

-.149

-.147

21

17.083

.883

.885

-.02121

-.02121

.14211

.14469

-.31674

-.32636

.27432

.28394

N

Mean

Std.

Deviation

Std. Error Mean

D0 2

3

13

12

2.0615

2.1667

.37314

.26742

.10349

.07720

Levene's Test for Equality of Variances

t-test for Equality of Means

F

Sig.

t

df

Sig. (2-tailed)

Mean Difference

Std. Error Difference

95% Confidence Interval of the Difference

Lower

Upper

D0 Equal variances assumed

Equal variances not assumed

1.525

.229

-.803

-.814

23

21.730

.430

.424

-.10513

-.10513

.13085

.12911

-.37582

-.37308

.16556

.16282

N

Mean

Std.

Deviation

Std. Error Mean

Hvn 1

2

11

13

1.1364

.9692

.51434

.34493

.15508

.09567

Levene's Test for Equality of Variances

t-test for Equality of Means

F

Sig.

t

df

Sig. (2-

tailed)

Mean Difference

Std. Error Difference

95% Confidence Interval of the Difference

Lower

Upper

Hvn

Equal variances assumed

1.847

.188

.948

22

.353

.16713

.17628

-.19844

.53271

Equal variances not assumed

.917

17.007

.372

.16713

.18221

-.21729

.55156

N

Mean

Std.

Deviation

Std. Error Mean

Hvn 1

3

11

12

1.1364

1.0833

.51434

.34859

.15508

.10063

Levene's Test for Equality of Variances

t-test for Equality of Means

F

Sig.

t

df

Sig. (2-tailed)

Mean Difference

Std. Error Difference

95% Confidence Interval of the Difference

Lower

Upper

Hvn Equal variances assumed

Equal variances not assumed

1.932

.179

.292

.287

21

17.391

.773

.778

.05303

.05303

.18177

.18487

-.32498

-.33634

.43104

.44240

N

Mean

Std.

Deviation

Std. Error Mean

Hvn 2

3

13

12

.9692

1.0833

.34493

.34859

.09567

.10063

Levene's Test for Equality of Variances

t-test for Equality of Means

F

Sig.

t

df

Sig. (2-tailed)

Mean Difference

Std. Error Difference

95% Confidence Interval of the Difference

Lower

Upper

Hvn Equal variances assumed

Equal variances not assumed

.025

.875

-.822

-.822

23

22.798

.419

.420

-.11410

-.11410

.13878

.13885

-.40120

-.40147

.17300

.17326

N

Mean

Std.

Deviation

Std. Error Mean

D0 1

2

31

36

3.3516

2.1222

.34532

.34568

.06202

.05761

Levene's Test for Equality of Variances

t-test for Equality of Means

F

Sig.

t

df

Sig. (2-tailed)

Mean Difference

Std. Error Difference

95% Confidence Interval of the Difference

Lower

Upper

D0 Equal variances assumed

Equal variances not assumed

.103

.749

14.522

14.523

65

63.551

.000

.000

1.22939

1.22939

.08466

.08465

1.06032

1.06026

1.39846

1.39852

Địa hình

N

Mean

Std.

Deviation

Std. Error Mean

Hvn 1

2

31

36

2.5548

1.0583

.35575

.39955

.06389

.06659

Levene's Test for Equality of Variances

t-test for Equality of Means

F

Sig.

t

df

Sig. (2-tailed)

Mean Difference

Std. Error Difference

95% Confidence Interval of the Difference

Lower

Upper

Hvn Equal

variances assumed

Equal variances not assumed

1.187

.280

16.074

16.216

65

64.917

.000

.000

1.49651

1.49651

.09310

.09229

1.31057

1.31219

1.68244

1.68082