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Question: 9781533908926...

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9781533908926

WORKSHEL Name Lab Day and Time Instructor Initials A. PRACTICE HYPOTHESIS DEVELOPMENT, DATA COLLECTION, DATA ANALYSIS, AND GRAPHING 1. What is the generalized topic for your lab section if it is not the heights of individuals in the class Have everyone stand up and make some general observations regarding your classmates height (OR record some general observations regarding the lab sections agreed upon topic). Record a few of these below. 2. Based upon the observations above, as a class,decide on a question or questions regarding the height of all individuals (OR the agreed upon topie). 3. 4. State the null hypothesis for the question above 5. State an alternative hypothesis. Design the experiment. How will you collect the data to test your hypothesis? What type of data (continuous or categorical) will you collect in order to test the hypothesis? 6.
SCIENTIFIC METHOD AND HYPOTHESIS TESTING 7. RESULTS: Measure your height to the nearest 0.1 cm. If you already know your height in feet and inches, convert it to inches, then multiply that value by 2.54 cm. Record this value below and on the computer at the front of the lab. Data Table 1.1 Mean height data MEAN HEIGHT DATA DATA COLUMNS FOR ANOTHER TOPIC Your Height Mean Male Mean Female (cm) Height (cm) Height (cm) To determine whether you have a statistical difference between the two groups for your hypothesis, your lab instructor will run a Students test to compare the means between the two groups (the -test may be snpaired or paired depending on the hypothesis that was 8. developed earlier) OR the appropriate statistical analysis for your data. What type of statistical analysis was run? 9. Was there a statistical difference between the two groups? Report the actual p-value: 10. Do the results support your hypothesis? If they do not, what could be a possible reason? 11. Constructing an appropriately labeled figure for this study. What type of figure would best illustrate the results of this study? a. b. What is the variable on the x-axis? What is the variable on the y-axis? c.
SCIENTIFIC METHOD AND HYPOTHESIS TESTING an appropriately labeled figure below. Do not forget to label the x- and y-axes. your axes? All graphs must have a figure caption, a descriptive 12. Construct Did you include the units for explanation for the figure. Do not just state the y-axis label versus x-axis label (i.e., heart rate vs. gender or the effect of heart rate based on gender differences). Instead, give a more descriptive explanation (ie, Bio 20 Monday laboratory males run faster than females) B. HYPOTHESIS DEVELOPMENT, DATA COLLECTION, DATA ANALYSIS, AND GRAPHING 13. The question for this exercise: Is there a difference in the resting radial pulse rate between male and female Bio 20 laboratory students? State a testable hypothesis for this question. 14. Your resting pulse rate (Do not forget the units): 15. Construct an appropriately labeled figure for this study. What type of figure would best illustrate the results of this study? a. b. What is the variable on the x-axis? c. What is the variable on the y-axis?
SCİENTIFIC METHOD AND HYPOTHESIS TESTING 16. Construct an appropriately labeled figure below. Do not forget to label the x and y axes. Did you include the units for your axes and a specific figure caption? C. BIOLOGY 3A POSTER ANALYSIS Poster #: 17. Title of the project 18. Is the poster you evaluated a hypothesis-based research project or a review poster? 19. What type of hypothesis did this group state for their poster (null or alternative)? 10
SCIENTIFIC METHOD AND HYPOTHESIS TESTING 20. If the group stated an alternative hypothesis, please write the null hypothesis for this groups study. If the group gave the null hypothesis, please write a possible alternative hypothesis. 21. What was the sample size for each group in this study? Was it large enough to be representative 22. The Results section of the paper contains data in written form as wellas graphic illustrations. For posters, graphic illustrations (figures, photos, tables, etc.) should predominate while the text is at a minimum. Do all figures have: figure caption, axis labels and units? Were there any components missing a. b. Were the figure caption(s) descriptive for the graph (i., Tomato plants grown with Miracle Gro increased plant heighr after six weeks as opposed to The effects of Miracle Gro* on plant heights or Plant height vs. week)? c. What variable was on the x and y axis for Figure 1? Units for each variable for Figure 1?
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