# Exp0 - Name of experiment Name of student Names of lab...

This preview shows pages 1–6. Sign up to view the full content.

Name of experiment Experiment 0: Statistics and Data Analysis Name of student Cia Li Names of lab partner or group members (if applicable) N/A Date 5/11/10 TA’s name Gialai Kooa Course number, lab section number, and lab room Chem241L, Section 503, Rm 420 Results and Calculations

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
In this experiment, ten different pieces of filter paper were weighed using a laboratory balance and the data was recorded below. Paper # Mass (g) 9 0.632 10 0.641 8 0.641 4 0.640 3 0.634 7 0.610 6 0.637 5 0.632 11 0.626 2 0.637 Table 1: Experimental Paper Mass Data *observations* Statistical Measure Computed Value Number of Measurements 10 Sum 6.330 g Mean 0.633 g
Standard Deviation 0.00937 g Table 2: Statistical Data Obtained from Data Analysis Sample Calculations = 0.632 + 0.641 + 0.641 + 0.640 + 0.634 + 0.610 + 0.637 + 0.632 + 0.626 + 0.637 = 6.330 g = n x i i = = 0.6 g s = = = 0.00937 g

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Questions and Calculations 1) Experimental Paper Mass Mean is: = n x i i = = 0.6 g Experimental Paper Mass Standard Deviation is: s = = = 0.00937 g Population Paper Mass Mean is: Population Paper Mass Standard Deviation is: 2)
3) 95% Confidence Interval is: 99% Confidence Interval is: 4) 5a) The population data set gives a more accurate representation of the data because it includes data from each and every paper in the population of filter paper. The sample data set includes only a small fraction of paper data of the paper population. 5b) When the number of measurements increase, uncertainty decreases (inverse relationship)

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 11

Exp0 - Name of experiment Name of student Names of lab...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online