Jawaban UAS no 2

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 (b) of Sampel

Intervals for treatment mean minus control mean

Level Lower Center Upper ----------+---------+---------+-------
a -0.9216 -0.2000 0.5216 (------*------)
c -1.1216 -0.4000 0.3216 (------*------)
d -1.9216 -1.2000 -0.4784 (------*------)
e -0.2216 0.5000 1.2216 (------*------)
----------+---------+---------+-------
-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)

Kesimpulan : Nilai P (0,000) < alpha (0,050) maka kelima sampel menghasilkan hasil yang berbeda nyata pada uji kemurnian NaCl

a) Karena Nilai P < alpha maka kelima sampel tersebut menghasilkan hasil yang berbeda nyata pada uji kemurnian NaCl.
b) Tidak signifikan, karena nilai TBN lebih banyak dari BN

Jawaban Soal UAS no. 1

One-way ANOVA: Efek versus Macam Limbah

Analysis of Variance for Efek
Source DF SS MS F P
Macam Li 4 13105 3276 7.91 0.000
Error 45 18636 414
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 10 62.70 23.57 (-----*------)
N 10 55.30 24.82 (------*-----)
P 10 39.80 19.50 (------*-----)
-------+---------+---------+---------
Pooled StDev = 20.35 40 60 80

Fisher's pairwise comparisons

Family error rate = 0.276
Individual error rate = 0.0500

Critical value = 2.014

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

Kesimpulan nilai P (0.000) < Alpha (0.05) maka kelima macam limbah tersebut menghasilkan hasil yang berbeda nyata <>