The data gathered in this experiment points to clear calculated values for the measurements of the i

The data gathered in this experiment points to clear calculated values for the measurements of the i

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Discussion The data gathered in this experiment points to clear calculated values for the measurements of the inner and outer diameter of the washer as well as the diameter of the ball bearing. The class data for the outer diameter of the washer, measured with the caliper, indicates the length to be 1.38 ± 0.003 inches. This value can be considered very certain as the mean, median, and mode all indicate that 1.38 inches is the correct value of the outer diameter. Additionally, the standard deviation for this calculation is significantly low, indicating a high precision and certainty in the measurement. The histogram shows that the majority of values obtained were around 1.38 inches as well. The class measurement for outer diameter agrees strongly with the group calculated value for the outer diameter of the washer with the caliper as well: 1.38 ± 0.002 inches. The group measurement also exhibits a high amount of precision and certainty in the measurement with the calipers. The measurement of the outer diameter with the ruler, however, indicates less certainty, as was expected. The ruler is not as accurate as the caliper and thus had a standard deviation of 0.025 inches, ten times as large as the caliper. This is appropriate as the calipers are capable of measuring one more decimal place than the ruler. Finally, the ruler found the average length of the outer diameter to be around 1.359 inches, significantly different than the caliper length.
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This note was uploaded on 10/07/2011 for the course ENGR 201 taught by Professor Miller during the Fall '08 term at Drexel.

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The data gathered in this experiment points to clear calculated values for the measurements of the i

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