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hw13_-_histograms_-_paperclip_experiment-2.docx

NAU_PrimH_dep1

Memorandum

Design4Practice (D4P) Program

To: EGR 186 Students

From: David Richter

Date: March 25/26, 2015

Re: Histograms – Paperclip Experiment

This assignment is due in 1 week by the beginning of class.

PART I: Collect Experimental Data

· Bend the provided 30 paper clips until they fail.

· Follow the instructions presented in class on how to bend the paperclips.

· Record the number of bends until failure for all 30 clips

· Determine the frequency of failure from 1 to 20 bends

· If the paperclip lasts more than 20 bends, note their frequency in the “20+ bends” row, and mention the frequency of this result in your paper.

· Record any additional observations about the paperclips that might be useful.

PART II: Organizing the Data

Create:

1. A table and histogram (using EXCEL) from your team’s data (30 paperclips).

2. A table and histogram (using EXCEL) from the data collected from the entire class (300 paperclips).

3. A table and histogram (using EXCEL) from the data collected from all 8 sections of EGR 186 (2400 paperclips).

Be sure your graphs are appropriately scaled. i.e., don't compare the # of bends of a group (30 paperclips) to the entire class (300 paperclips). If you want to compare 30 paperclips to 300, convert to %.

PART III: Presenting the Experiment

Write a report to explain the experiment, show the data collected, and discuss the results.

1. Include a cover page with appropriate information.

2. The report must contain a 1) problem statement, 2) methods section, 3) results section, and 4) conclusion (make a conclusion by writing a short paragraph to answer the provided questions).

a. Conclusion: discuss your observations regarding the frequencies of paperclip failure.

i. Is there a distinct trend or trends?

ii. Discuss why such a result may have occurred (re-examine the paperclips for any possible clues to the trends observed).

PAPER FORMAT NOTES:

· Write your paper in 3RD PERSON! i.e “The data show…”, NOT “I saw a trend in the data…”. In engineering technical papers, the data is the focus (not you…).

· Properly label title and axes of every graph. No legend is required.

· Explain what each graph and table is in the text. Refer to each graph in the text (Figure 1, Figure 2, Table 1, etc.).

· Each graph must also have a caption centered directly BELOW the figure (i.e. Figure 1: Team results of…).

· Each table must have a caption centered directly ABOVE the table (i.e. Table 1: Team results of…).

· Refer to the journal articles you read for the Tech Comm Project for format, header, figure, table, and caption examples.

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