VI. c. Finding the person weighted average exposure of ozone
             Estimated time:
             3 minutes
By finding the average of the exposure levels we can determine which groups within our categories have been exposed to more ozone
In this exercise, you will:
  • Finding the person weighted average ozone exposure


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Text Version:

    1. Open your newly created summary statistics table,you may need to add it, the same way as you have added layers in the past

    2. Open the attribute table of the summary statistics table and perform the following calculations either by hand or by calculator

    3. Calculate the Person Weighted Ozone Exposure by taking the sum of ExpWh and dividing it by the sum of White, record the value on your lab handout

    4. Repeats for the fields Hispanic, Males, Females, AGE_Under5, Age_30_39, Age_65_up and the 7 exposure groups you just created in VI.a.

    5. Which group has the highest exposure?

      Which group has the lowest exposure?

      Is there a significant difference between the highest and lowest exposure levels?

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