GEO3452: Homework 3
Part 1: UF Campus Map
Dr. Hamerlinck is a part of the UF Mapping Committee. Currently, the committee is working to redesign the UF campus map. The following map does not have a scale bar and will need to include one before the map can be finalized. Dr. Hamerlinck would like your input on how to estimate the map’s scale, assuming you only have a ruler at hand and no access to the Internet. Compose a thoughtful response that includes at least two of the estimation strategies or techniques you would provide to Dr. Hamerlinck.
Source: https://pasarelapr.com/detail/map-uf-us-5.html
Part 2: Unit 1 Summary Questions
1. What is the smallest census unit available for the public?
2. If we compare the risks of deaths from diseases of the digestive system (ICD-10 codes: K00-K992) between Alachua, Marion, and Leon counties in Florida in 2010…
a. What is the best comparison to make: total number of deaths; crude death rates; age-adjusted death rates; or incidence?
b. Perform the calculation – What are the values for the measure you chose in (a) of these three counties, respectively?
3. You are concerned about the association between toxic waste sites and nervous system disorders. You identify 300 people who were recently diagnosed with nervous system disorders in Massachusetts. You then randomly select a group of 300 healthy individuals from Massachusetts, frequency-matching on age, sex, and county of residence. You find that of those with nervous system disorders, 210 have a large toxic waste site within a mile of their home. Of the healthy individuals, 170 live near a large toxic waste site.
a. What kind of study is this: concurrent cohort; retrospective cohort; case-control?
b. Calculate the appropriate measure of association between toxic waste sites and nervous system disorders. Include a picture of your calculation sheet below, making sure your handwriting and image are clear enough to read.
c. How would you interpret your results based on the measurement?
d. Calculate the X2 statistic null hypothesis that there is no association between toxic waste site and nervous system disorders. The Chi-Square table can be found via this link:
https://www.di-mgt.com.au/chisquare-table.html
. Include a picture of your calculation sheet below, making sure your handwriting and image are clear enough to read.
e. What is your conclusion based on the X2 value?