Application of Statistical Concepts in the Determination of Weight Variation in Samples
Margabacus
Insti of Chemy, Univ of the Phili, Dili, QC

Dept of MolBio and Biotech, CS, Univ of the Phili, Dili, QC
ABSTRACT

The objectives of the experiment are to use the analytical balance correctly, to gain an understanding of some concepts of statistical chemistry, and to apply statistical concepts in analytical chemistry. The experiment preceded by ten teams weighing ten 25centavo coins using an analytical balance, weighing by difference. After doing the calculations to analyze the data, some of the values were rejected from their data sets. …show more content…
Table 3. Results of Various Computations Used to Analyze Data Data Set  mean  Standard deviation  Relative standard deviation  Range  Relative Range  1  3.6270g  0.02633  7.2607  0.03  18.4726  2  3.6529g  0.07846  21.4779  0.218  59.6786 
Since the standard deviations in both sets are relatively low, one can conclude that the values are close together, therefore there is relatively high precision within the data. In addition, the pooled standard deviation for all the groups was computed and found out to be 0.052299073 for Data Set1 and 0.305063684 for Data Set2, both of which are very low and therefore all the data gathered by all of the groups are close together (precision is high).
Conclusion
After analyzing the data using statistical computations, the values were concluded to be of high precision. Overall, the experiment was

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