1bScientificInvestigation

Biology 6c figure 1 5 p revelence o f obesity among

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Unformatted text preview: e 1 .5 P revelence o f obesity among adults in US from 1960 to 2000. 17 1. Using data from your experiments and the grid provided, design a bar graph that shows the relationship between the dependent and independent variable for both body parts. Discuss with your teammates how to design one figure so that it includes the data for the independent variable for each experiment. a. What was the independent variable for each experiment? On which axis would you graph this? b. What was the dependent variable? Write it on the appropriate axis. 2. Add a legend to your figure to distinguish newborn and student ratios. 3. Draw, label, and compose a title for your figure. 4. Imagine an experiment similar to the one you have performed where it would be appropriate to use a line graph. Figure 1.6 18 Exercise 1.B. Scientific Investigation: Experimental Design Applied Interpreting and Communicating Results The last component of a scientific investigation is to interpret the results and discuss their implications in light of the hypothesis and its supporting literature. The investigator studies the tables and graphs and determines if the hypothesis has been supported or falsified. If the hypothesis has been falsified, the investigator must suggest alternate hypotheses for testing. If the hypothesis has been supported, the investigator suggests additional experiments to strengthen the hypothesis, using the same or alternate methods. Scientists will thoroughly investigate a scientific question, testing hypotheses, collecting data, and analyzing results, until they are satisfied that they can explain the phenomenon of interest. The final phase of a scientific investigation is the communication of the results to other scientists. Preliminary results may be presented within a laboratory research group and at scientific meetings where the findings can be discussed. Ultimately, the completed project is presented in the form of a scientific paper that is reviewed by scientists within the field and published in a scientific journal. The ideas, procedures, r...
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This note was uploaded on 09/02/2011 for the course BIOL 6C taught by Professor Sundram during the Spring '09 term at DeAnza College.

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