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
Selasa, 08 Desember 2009
Diposting oleh Save Our Nature di 19.19
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