UJIAN AKHIR KOMPUTASI DATA LABORATORIUM

UJIAN AKHIR KOMPUTASI DATA LABORATORIUM

SEMESTER GENAP TAHUN AKADEMIK 2009/2010

No. 1 (Spreadsheet)

HIV (lentivirus)	Waktu Kematian (tahun)
23679.77	7
28716.90	6.6
31980.23	5
41790.66	5.6
59817.22	4
61903.28	3.6
76781.45	3
82615.00	2.52

No.2 (Minitab)

Paired T-Test and CI: SNEWS (dalam kelvin), SN1604 (dalam kelvin)

Paired T for SNEWS (dalam kelvin) - SN1604 (dalam kelvin)

N Mean StDev SE Mean
SNEWS (dalam 5 15294634 173719 77690
SN1604 (dala 5 15284058 173495 77589
Difference 5 10577 24250 10845

95% CI for mean difference: (-19535, 40688)
T-Test of mean difference = 0 (vs not = 0): T-Value = 0.98 P-Value = 0.385

P > alpha, terima H0 yang artinya pembacaan supernova (inti panas matahari) dengan menggunakan metode SNEWS TIDAK BERBEDA NYATA dengan menggunakan metode SN1604


No. 3 (Minitab)

Regression Analysis: Absorbansi versus Konsentrasi


The regression equation is
Absorbansi = - 0.0037 + 0.187 Konsentrasi

Predictor Coef SE Coef T P
Constant -0.00370 0.01795 -0.21 0.847
Konsentr 0.186898 0.007064 26.46 0.000

S = 0.02518 R-Sq = 99.4% R-Sq(adj) = 99.3%

Analysis of Variance

Source DF SS MS F P
Regression 1 0.44391 0.44391 700.02 0.000
Residual Error 4 0.00254 0.00063
Total 5 0.44645

Correlations: Konsentrasi, Absorbansi


Pearson correlation of Konsentrasi and Absorbansi = 0.997
P-Value = 0.000

Mendekati 1, sehingga antara konsentrasi dan absorbansi dalam pengamatan larutan NH3-N ada keterikatan yang sangat erat. apabila konsentrasi naik, maka absorbansi pun akan naik.



Regression Analysis: Absorbansi versus Konsentrasi


The regression equation is
Absorbansi = -0.0037049 + 0.186898 Konsentrasi

S = 0.0251822 R-Sq = 99.4 % R-Sq(adj) = 99.3 %

Analysis of Variance

Source DF SS MS F P
Regression 1 0.443915 0.443915 700.022 0.000
Error 4 0.002537 0.000634
Total 5 0.446451


Fitted Line Plot: Absorbansi versus Konsentrasi




No. 4 (MINITAB)

One-way ANOVA: Kadar Uranium (curie/miliquark) versus Sample

Analysis of Variance for Kadar Ur
Source DF SS MS F P
Sample 2 666.9 333.5 15.02 0.000
Error 15 333.0 22.2
Total 17 999.9
Individual 95% CIs For Mean
Based on Pooled StDev
Level N Mean StDev ---+---------+---------+---------+---
1 6 44.873 6.336 (-----*-----)
2 6 30.603 5.051 (-----*-----)
3 6 33.995 0.966 (-----*----)
---+---------+---------+---------+---
Pooled StDev = 4.712 28.0 35.0 42.0 49.0

P < alpha, terima H1 yang artinya ujia kadar uranium (curie/miliquark) pada reaktor nuklir dengan 3 metode BERBEDA NYATA

Dunnett's comparisons with a control

Family error rate = 0.0750
Individual error rate = 0.0419

Critical value = 2.22

Control = level (1) of Sample

Intervals for treatment mean minus control mean

Level Lower Center Upper -+---------+---------+---------+------
2 -20.319 -14.270 -8.221 (-----------*------------) BN
3 -16.928 -10.878 -4.829 (-----------*-----------) BN
-+---------+---------+---------+------
-20.0 -15.0 -10.0 -5.0


Fisher's pairwise comparisons

Family error rate = 0.169
Individual error rate = 0.0750

Critical value = 1.913

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

1 2

2 9.066 BN
19.474

3 5.674 BN -8.596 TBN
16.082 1.812







No. 5 (CHEMDRAW)

IRFAN PUJIARTONO
1.A
095543
AKADEMI KIMIA ANALISIS BOGOR