andrade0

andrade0 - EXPERIMENT 0: STATISTICAL TREATMENT OF DATA...

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EXPERIMENT 0: STATISTICAL TREATMENT OF DATA (INFORMAL) Data Tables ___9___ / 10 pts Table 1: Experimental Paper Mass Data (5 points) Table 2: Statistical Data Obtained from Data Analysis (5 points) Sample calculations of mean and standard deviation. ___10___ / 10 pts Excel Spreadsheet ___11___ / 12 pts • Properly labled. • Properly set-up • Calculated average and standard deviation for both the experimental and the population paper mass data. • Accurate Calculation of pooled standard deviation (s pool ) __3____ / 5 pts To receive all these points students must show a sample calculation of s pool . Case II t-test: Comparing experimental paper mass data set to ___11___ / 14 pts population paper mass data set. Sample calculations of t-tests at the 95 % and 99 % confidence level. (10 points) Conclusion from the t-test. (4 points) Case I t-test: Comparing experimental paper mass data set to a ___9___ / 9 pts a known value. Sample calculation of t-test at the 95 % confidence level. (5 points) Conclusion from t-test. (4 points) Calculation of relative uncertainty from experimental data set. ___5___ / 5 pts • - 2.5 points if wrong data set used. Calculation of 95 % confidence interval using the experimental data set. ___5___ / 5 pts • - 2.5 points if wrong data set used. Specific Questions (5 points each) __25____ / 30 pts • Question 5 Part a • Question 5 Part b • Question 7 (- 4 without any explanation or justification) • Question 8 (- 4 without any explanation or justification) • Question 9 (- 4 without any explanation or justification) • Question 10 (- 4 without any explanation or justification) Deductions (Late lab report, incorrect formatting) - ______ Total Score ___88___ / 100 pts
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Statistics and Data Analysis Francisco Andrade Jessica Booe 5/11/10 Wesley Storm CHEM 241L 402, Morehead Labs Room 301 "I pledge that I have used no other reports (old or current) when writing this lab report. I also pledge that I did not collaborate with any students and that the report I submit here contains my own ideas, thoughts, observations, calculations, data, conclusions and question answers. Lastly, I pledge that the data presented in this report was collected by my lab partner(s) and myself during my scheduled lab period”.
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Results and Calculations: This introductory lab involved two sets of data concerning masses of filter paper: one set that was collected during the lab period, and a set given outside of lab. To collect the paper mass data in lab, ten different pieces of filter paper were weighed on a scale and the mass was recorded in grams. Paper # 5 6 2 9 8 1 4 10 7 3 Mass (g) 0.644 0.655 0.650 0.646 0.650 0.650 0.641 0.661 0.655 0.659 Table 1. Experimental Paper Mass Data The mean and standard deviation were calculated for this data sample. This was calculated in separate steps using Microsoft Excel instead of using exact formulas such as AVERAGE or STDEV 1 . Sample calculations for the obtained set of paper mass data are
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andrade0 - EXPERIMENT 0: STATISTICAL TREATMENT OF DATA...

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