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Project Data 2

Project Data 2

Q DATA DAY 2 In your second Data Day assignment, you will investigate related pairs of variables and answer questions about the data. This work is to be done by technology Pick 6 pairs of variables and determine their relationships. You may not use any one variable more than twice. Your instructor will give you directions at the beginning of class for the following: 1. how to make a scatterplot, 2. how to find the correlation coefficient, 3. how to make side-by-side boxplots and stem plots You are to make two (2) scatterplots, calculating the correlation coefficient; two (2) back-to-back boxplots or stemplots and 2 additional 'visual' displays. Choose your pairs of variables so that these displays are appropriate for them. Number each of your displays (all 6 of them), and then for the variables shown in the scatterplots (2 to 4 pair), write one paragraph explaining the relationship, using your calculated correlation coefficient, and saying why you believe the relationship is a causal one (one variable explains the data in the second variable) or why you think the 'relationship' is not causal--that is, that there is another reason for the apparent relationship. If there is NO obvious relationship, explain why that is true. For the variables in the side-by-side boxplots and/or stem plots (2 to 4 pair) describe their relationship using the appropriate measures of center and spread and position, along with any skewing or outliers. Your document should have 6 parts: For each pair of variables (all 6 pair of them): a. Selection: Choose the variables b. Display: Show a visual representation of the apparent relationship; b. Discussion: Write a paragraph describing and discussing that relationship. Save your MSWord document in the following manner: your last name, your first initial, your student ID number, DD2. So, if I am Sue Jones ID 99999999, my document would be saved as joness99999999DD2On the document itself--in the header--put your name, your instructor's name and the section number of the class you are in. Get this information from your instructor. Submit this through BB by 11:59 on Data Day2. If your assignment is not submitted on time, one point will be taken off for each minute late. The lowest possible grade will be zero(0). Your assignment will be graded in the following manner. Followed directions: Proficient: 3 points-- No corrections were necessary; no additional instruction needed Competent: 2 points-- Student understands, did the work appropriately but had some errors/Student demonstrates understanding but needs practice Novice: 1 point-- Student demonstrates lack of understanding/student still learning Not Applicable: 0 points-- Student didn't do this portion of the project. Total possible, 3 points Pair 1: Selection, Display, Discussion of the Relationship Proficient: 2 points-- No corrections were necessary; no additional instruction needed Competent: 1 points-- Student understands, did the work appropriately but had some errors/Student demonstrates understanding but needs practice Novice: .5 point-- Student demonstrates lack of understanding/student still learning Not Applicable: 0 points-- Student didn't do this portion of the project. Total possible, 2 points Pair 2: Selection, Display, Discussion of the Relationship Proficient: 2 points-- No corrections were necessary; no additional instruction needed Competent: 1 points-- Student understands, did the work appropriately but had some errors/Student demonstrates understanding but needs practice Novice: .5 point-- Student demonstrates lack of understanding/student still learning Not Applicable: 0 points-- Student didn't do this portion of the project. Total possible, 2 points Pair 3: Selection, Display, Discussion of the Relationship Proficient: 2 points-- No corrections were necessary; no additional instruction needed Competent: 1 points-- Student understands, did the work appropriately but had some errors/Student demonstrates understanding but needs practice Novice: .5 point-- Student demonstrates lack of understanding/student still learning Not Applicable: 0 points-- Student didn't do this portion of the project. Total possible, 2 points Pair 4: Selection, Display, Discussion of the Relationship Proficient: 2 points-- No corrections were necessary; no additional instruction needed Competent: 1 points-- Student understands, did the work appropriately but had some errors/Student demonstrates understanding but needs practice Novice: .5 point-- Student demonstrates lack of understanding/student still learning Not Applicable: 0 points-- Student didn't do this portion of the project. Total possible, 2 points Pair 5: Selection, Display, Discussion of the Relationship Proficient: 2 points-- No corrections were necessary; no additional instruction needed Competent: 1 points-- Student understands, did the work appropriately but had some errors/Student demonstrates understanding but needs practice Novice: .5 point-- Student demonstrates lack of understanding/student still learning Not Applicable: 0 points-- Student didn't do this portion of the project. Total possible, 2 points Pair 6: Selection, Display, Discussion of the Relationship Proficient: 2 points-- No corrections were necessary; no additional instruction needed Competent: 1 points-- Student understands, did the work appropriately but had some errors/Student demonstrates understanding but needs practice Novice: .5 point-- Student demonstrates lack of understanding/student still learning Not Applicable: 0 points-- Student didn't do this portion of the project. Total possible, 2 points GRAND TOTAL 15 points No half points will be assigned. This assignment counts as 5% of your total course grade. If you are caught cheating on an exam or a project, you will fail the course and disciplinary charges may be brought against you. ? Hunter College Policy on Academic Integrity “Hunter College regards acts of academic dishonesty (e.g., plagiarism, cheating on examinations, obtaining unfair advantage, and falsification of records and official documents) as serious offenses against the values of intellectual honesty. The College is committed to enforcing the CUNY Policy on Academic Integrity and will pursue cases of academic dishonesty according to the Hunter College Academic Integrity Procedures.” In particular, if you use someone else's work as your own, you will get an F in the course. If you give your work to someone else to use, you may get an F in the course as well.

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Data Project 2: Pair 1: Height and Weight a. I am selecting the first pair of variables as height and weight. Both variables are quantitative and interval level of measurement, so we can perform the correlation analysis for them. b. Scatterplot: Correlations Height Weight Height Pearson Correlation 1 .592** Sig. (2-tailed) .000 N 99 99 Weight Pearson Correlation .592** 1 Sig. (2-tailed) .000 N 99 100 **. Correlation is significant at the 0.01 level (2-tailed). c. As the correlation coefficient between height and weight is 0.592, it looks like a moderate positive linear relation between both variables. Also, P value for correlation between both variables is 0, so it is significant linear relation between height and weight. The relation is verified by scatter-plot also. It looks like a higher weight is paired with higher height and lower weight is paired with lower height.