PSYC 381: Principles of Statistics and Experimental Design Project 1 (100 points) – click here for printable version Download click here for printable version (contains helpful images not included below) Write this report using APA style. Be sure to provide all data observed or generated, show all calculations, answer all questions, and properly summarize the findings of each section. Specifically, for Part 1, you must provide all data that you used from the COVID websites. For Parts 2 and 3 you must provide a table with the raw data for the under 35 and for the 35 and over age groups. Your data should be unique (i.e., the data that you locate or generate will be different from the data of all other students in this course). Please label your project by section (Part 1A, Part 1B, Part 1C, Part 1D, Part 2, and Part 3) and include the original questions to organize your paper within the sections. Submit your writeup as a single Word or PDF file through Canvas assignments. You will also need to submit your SPSS data for Part 2. Part 1A. For frequency and relative frequency. Use this Google COVID Tracker (Links to an external site.) (data from August 24, 2021 are presented in the hard copy of the project). As of Aug 24th, the frequency of COVID deaths in the United States was 629,644 with a relative frequency = 629,644/38,043,754 = = % of the COVID cases in the . resulted in death. Select three states other than Michigan. What is the frequency of COVID deaths in each of those states? What is the relative frequency for each of those states? How useful are these measures in our understanding of how deadly this virus is? How much should we trust the numerator of the relative frequency of deaths? The denominator? If testing increased, how would this affect the frequency of deaths? If testing increased, how would this affect the relative frequency of deaths? Part 1B. Next youll consider the percentage of the population in each of these states that has been vaccinated using the Mayo Clinic Vaccine Tracker (Links to an external site.) (data from Aug 24, 2021 are presented in the hard copy of the project) You can find this table by clicking on the link below the first map. Choose the same three states that you used above and determine the percentage of the population that has received at is partially vaccinated and fully vaccinated. This requires no calculations. Part 1C. Next, graph the relative frequency of COVID deaths for these states using a relative frequency bar chart. Part 1D. Write a brief summary describing what you learned about COVID rates between the three states and how those might relate to the rates of COVID vaccinations. Which states are doing better at handling COVID? Which are doing worse? Do you think that it has anything to do with the size of the population? Part 2. Find a total of 15 friends, family members, classmates, or acquaintances under the age of 35 and ask them this question: How worried are you about becoming very ill if you contract the coronavirus? They should answer using this 5-point scale: 1 = not at all worried; 2 = slightly worried; 3 = somewhat worried; 4 = worried; 5 = extremely worried. Find a total of 15 friends, family members, classmates, or acquaintances 35 years-old or older and ask them the same question, using the same response format. Enter the data using SPSS. Be sure to provide the data for each group when you submit this project (this should be submitted as ). Using SPSS, determine the mean, median, mode, variance, and standard deviation of each group (keep in mind that it might be easiest to enter each group into a separate column to obtain this information but that is not how it needs to be entered for the analyses below; copy and paste the SPSS output into your final document). What does each distribution look like? Is the under 35 distribution symmetrical or skewed? Is any particular measure of central tendency a better choice for this group of scores? Explain your reasoning. Is the over 35 distribution symmetrical or skewed? Is any particular measure of central tendency a better choice for this group of scores? Explain your reasoning. Part 3. Use the data gathered in Part 2 to test the research hypotheses that there is a difference in worry about becoming very ill if COVID is contracted, between those who are under 35 years-old and those who are 35 years or older. Set alpha at . State your hypotheses. What is the null hypotheses? The research hypotheses? Determine the appropriate test and determine the critical value. Calculate the statistical test. Show all of your work. Make a decision regarding whether or not to reject the null hypotheses. Calculate effect size (either Cohns D or r2). Enter the data into SPSS to check your work. Did you get the same results with SPSS? Include the SPSS output along with your hand calculations. Why did you choose the test that you did? If your test was not significant give at least two reasons why you think that it did not reach statistical significance. If your test was significant, then discuss effect size. How strong was the effect of age on worry? Describe your finding using APA style. Clearly state your conclusions regarding age and degree of worry regarding COVID. Rubric PSYC 381 Project 1 Rubric PSYC 381 Project 1 Rubric Criteria Ratings Pts This criterion is linked to a Learning Outcome 1. Data for frequency and relative frequency reported for State 1. 5 pts This criterion is linked to a Learning Outcome 2. Data for frequency and relative frequency reported for State 2. 5 pts This criterion is linked to a Learning Outcome 3. Data for frequency and relative frequency is reported for State 3 5 pts This criterion is linked to a Learning Outcome 4. Discussion of frequency and relative frequency; their usefulness in this situation; implications due to changes in the numerator and denominator 5 pts This criterion is linked to a Learning Outcome 5. Vaccination rates (partial and full) are provided for each of the three states. 5 pts This criterion is linked to a Learning Outcome 6. Graph correctly presents relative frequency for the three states and uses appropriate graphing conventions (see text) 5 pts This criterion is linked to a Learning Outcome 7. Summary of the relationship between rates of COVID cases, deaths, and vaccination for the three states. 5 pts This criterion is linked to a Learning Outcome 8. Adequate data collected and reported from those under and over 35 years old. 5 pts This criterion is linked to a Learning Outcome 9. Descriptive statistics are provided and are accurate. 5 pts This criterion is linked to a Learning Outcome 10. Descriptive properties of the data are discussed (., skewness) 5 pts This criterion is linked to a Learning Outcome 11. The null hypothesis and research hypothesis are correctly stated; one or two-tailed 5 pts This criterion is linked to a Learning Outcome 12. The proper statistic is selected 5 pts This criterion is linked to a Learning Outcome 13. The hand calculation is accurate 5 pts This criterion is linked to a Learning Outcome 14. The hand calculations are provided in the report and are neat and clear 5 pts This criterion is linked to a Learning Outcome 15. SPSS analysis data entered correctly 5 pts This criterion is linked to a Learning Outcome 16. SPSS analysis is completed correctly 5 pts This criterion is linked to a Learning Outcome 17. Decision regarding whether or not to reject the null is interpreted correctly for hand calculations and SPSS 5 pts This criterion is linked to a Learning Outcome 18. Write up is clear and grammatical 5 pts This criterion is linked to a Learning Outcome 19. Write up is comprehensive and adheres to APA style 5 pts This criterion is linked to a Learning Outcome 20. The report is well organized and structured so that it follows the parts of the project (1A, 1B, IC, 1D, 2, and 3). 5 pts Total Points: 100Show more
