Kekuatan Impak Resin Akrilik Polimerisasi Panas dengan Penambahan 0,3% , 0,6% dan 0,9% Serat Polietilen

Lampiran 1
Skema Alur Penelitian

KEKUATAN IMPAK RESIN AKRILIK POLIMERISASI PANAS
DENGAN PENAMBAHAN 0,3% , 0,6% DAN 0,9% SERAT
POLIETILEN

Master cast dari logam

Penanaman dalam kuvet

Mold

RAPP tanpa serat

RAPP + PE 0,3%

RAPP + PE 0,6%

RAPP + PE 0,9%

Pengisian RAPP pada mold

Kuvet ditekan dengan pres

Kuring

Polishing

Uji kekuatan impak

Data

Analisis data

Hasil

Universitas Sumatera Utara

Analisis Statistik
UJI NORMALITAS DATA

Tests of Normality
Kolmogorov-Smirnova
Kelompok
nilai

Statistic

df

Shapiro-Wilk

Sig.

Statistic

df

Sig.

Tanpaserat

.145

10

.200*

.913

10

.302

SeratPolietilen 0,3%

.229

10

.146

.926

10

.407

*

SeratPolietilen 0,6%

.214

10

.200

.941

10

.569

SeratPolietilen 0,9%

.176

10

.200*

.902

10

.232

a. Lilliefors Significance Correction
*. This is a lower bound of the true significance.
ONE WAY ANOVA

Descriptives
nilai
N

Mean
.0054000
.0059500
.0071500
.0080500

95% Confidence Interval for Mean

Std.
Deviation

Std. Error

Lower Bound

Upper Bound

Minimum Maximum

Tanpaserat
SeratPolietilen 0,3%
SeratPolietilen 0,6%
SeratPolietilen 0,9%

10
10
10
10

.00071880
.00068516
.00045947
.00043780

.00022730
.00021667

.00014530
.00013844

.0048858
.0054599
.0068213
.0077368

.0059142
.0064401
.0074787
.0083632

.00450
.00450
.00650
.00725

.00650
.00700

.00800
.00850

Total

40 .0066375 .00118882

.00018797

.0062573

.0070177

.00450

.00850

Universitas Sumatera Utara

Test of Homogeneity of Variances

nilai
Levene
Statistic
.718

df1

df2
3

Sig.
36

.548

ANOVA
nilai
Sum of
Squares
Between Groups

Within Groups
Total

.000
.000
.000

df

Mean Square
3
36
39

.000
.000

F
40.914

Sig.
.000

Universitas Sumatera Utara

Post Hoc Tests
Multiple Comparisons
nilai
LSD
(I) Kelompok
Tanpaserat

(J) Kelompok

95% Confidence Interval

Mean Difference
(I-J)

SeratPolietilen 0,3%
SeratPolietilen 0,6%

SeratPolietilen 0,9%
SeratPolietilen 0,3% Tanpaserat
SeratPolietilen 0,6%
SeratPolietilen 0,9%
SeratPolietilen 0,6% Tanpaserat
SeratPolietilen 0,3%
SeratPolietilen 0,9%
SeratPolietilen 0,9% Tanpaserat
SeratPolietilen 0,3%
SeratPolietilen 0,6%
*. The mean difference is significant at the 0.05 level.

Std. Error

Sig.

Lower Bound

Upper Bound

-.00055000

*

.00026352

.044

-.0010844

-.0000156

-.00175000

*

.00026352

.000

-.0022844

-.0012156

-.00265000*
.00055000*
-.00120000*
-.00210000*
.00175000*
.00120000*
-.00090000*
.00265000*
.00210000*
.00090000*

.00026352
.00026352
.00026352
.00026352
.00026352
.00026352
.00026352
.00026352
.00026352
.00026352

.000
.044
.000
.000
.000
.000
.002
.000
.000
.002

-.0031844
.0000156
-.0017344
-.0026344
.0012156
.0006656
-.0014344
.0021156
.0015656
.0003656

-.0021156
.0010844
-.0006656
-.0015656
.0022844
.0017344
-.0003656
.0031844
.0026344
.0014344

Universitas Sumatera Utara

Means Plots

Universitas Sumatera Utara

Lampiran 3
Surat Keterangan Penelitian

Universitas Sumatera Utara

Surat Keterangan Penelitian

Universitas Sumatera Utara