Lab Report 1 - Ben Kensing Clark Plost Kevin Yee Nicole Tran Lab report#1 1 a Determine each of the three statistics(mean standard deviation and PEM for

Lab Report 1 - Ben Kensing Clark Plost Kevin Yee Nicole...

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Ben Kensing Clark Plost Kevin Yee Nicole Tran Lab report #1 1 a) Determine each of the three statistics (mean, standard deviation, and PEM) for the three devices using the provided data template for both your group data set and the entire class data set. b) What are possible sources of measurement error in the techniques and instruments you used to measure volume and mass? c) Construct a bar graph (with error bars) using the mean and standard deviation of the entire class data setfor each the three devices used to measure a 60-mL Group 4 Mean Standard Deviation % Error of Mean Graduated Cylinder 59.01 0.12 1.66 Erlenmeyer Flask 53.16 1.17 11.40 Beaker 55.66 1.69 7.24 Class Data Mean Standard Deviation % Error of Mean Graduated Cylinder 58.54 1.17 2.43 Erlenmeyer Flask 55.88 3.60 6.87 Beaker 55.26 2.95 7.90
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d) Which of the three devices was the most accurate for measuring a 60-mL volume? Include the statistic (its value with SI units as appropriate) that supports your answer and state some reasons why this device might be more accurate compared to the others. Similarly, which of the three devices was the most precise?
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