Kamis, 12 November 2009

Ujian Akhir Semester Aplikasi Komputer
1. Efek Kerusakan Limbah terhadap 50 orang

One-way ANOVA: Efek versus Macam Limbah

Analysis of Variance for Efek
Source DF SS MS F P
Macam Li 3 10483 3494 7.56 0.000
Error 46 21258 462
Total 49 31741
Individual 95% CIs For Mean
Based on Pooled StDev
Level N Mean StDev -----+---------+---------+---------+-
K 10 86.80 11.15 (-------*--------)
L 10 75.30 19.87 (-------*--------)
M 20 51.25 24.11 (-----*-----)
N 10 55.30 24.82 (--------*-------)
-----+---------+---------+---------+-
Pooled StDev = 21.50 48 64 80 96

Fisher's pairwise comparisons

Family error rate = 0.198
Individual error rate = 0.0500

Critical value = 2.013

Intervals for (column level mean) - (row level mean)

K L M

L -7.85
30.85
( TBN )
M 18.79 7.29
52.31 40.81
( BN ) ( BN )
N 12.15 0.65 -20.81
50.85 39.35 12.71
( BN ) ( BN ) ( TBN )

Hipotesa : Ho ditolak
Kesimpulan : Dalam Pengujian yang dilakukan, didapatkan bahwa P < alpha, mak ho ditolak dan ada data yang berbeda nyata. mpengujian dilakukan dengan metode fisher.
2.Uji Kemurnian NaCl
One-way ANOVA: Kemurnian ( % ) versus Sampel

Analysis of Variance for Kemurnia
Source DF SS MS F P
Sampel 4 6.208 1.552 11.09 0.000
Error 15 2.100 0.140
Total 19 8.308
Individual 95% CIs For Mean
Based on Pooled StDev
Level N Mean StDev ---------+---------+---------+-------
a 4 98.800 0.082 (----*-----)
b 4 99.000 0.294 (----*-----)
c 4 98.600 0.245 (-----*----)
d 4 97.800 0.688 (-----*-----)
e 4 99.500 0.271 (----*-----)
---------+---------+---------+-------
Pooled StDev = 0.374 98.00 98.70 99.40

Dunnett's comparisons with a control

Family error rate = 0.0500
Individual error rate = 0.0156

Critical value = 2.73

Control = level (a) of Sampel

Intervals for treatment mean minus control mean

Level Lower Center Upper --------+---------+---------+---------
b (TBN ) -0.5216 0.2000 0.9216 (------*------)
c ( TBN ) -0.9216 -0.2000 0.5216 (------*------)
d ( BN ) -1.7216 -1.0000 -0.2784 (------*------)
e ( TBN ) -0.0216 0.7000 1.4216 (------*------)
--------+---------+---------+---------
-1.0 0.0 1.0


Tukey's pairwise comparisons

Family error rate = 0.0500
Individual error rate = 0.00747

Critical value = 4.37

Intervals for (column level mean) - (row level mean)

a b c d

b -1.0176
0.6176
(TBN )
c -0.6176 -0.4176
1.0176 1.2176
( TBN ) (TBN )
d 0.1824 0.3824 -0.0176
1.8176 2.0176 1.6176
(BN ) ( BN) (TBN )
e -1.5176 -1.3176 -1.7176 -2.5176
0.1176 0.3176 -0.0824 -0.8824
( TBN ) ( TBN ) ( BN ) ( BN )

Hipotesa : tolak Ho
Kesimpulan : Dalam pengujian didapat bahwa P <
alpha yang artinya h0 ditolak dan ada data yang berbeda nyata. Pengujian dilakukan dengan uji dunnet dan tukey.
Uji dunnet
control = level (a) of Sampel

b (TBN )
c ( TBN )
d ( BN )
e ( TBN )

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