Honors Applied Statistical Methods 1000
Solutions to Practice Midterm 1

  1.  
    1. -5, 8, 21, 34, 47, 60, 73
    2. 2.5, 16
    3. 4.1
    4. (iii)
  2.  
    1. (vi)
    2. (iii)
    3. (v)
    4. (iii)
    5. (i)
    6. (ii)
    7. (vi)
    8. (iii)
    9. (iv)
  3.  
    1. (i), (iv)
    2. convenience, cluster
    3. rate of not handwashing went from 0.25 to 0.33, a difference of 0.08/0.25 which is about a third (iii)
    4. diff in failing to wash hands went from 0.25-0.10=0.15 to 0.33-0.12=0.21 so it's a change of about 0.06/0.15 or 0.40, which is closest to (iii) but (iv) might be OK
  4. (ii)
  5.  
    1. (ii)
    2. (iv), (v)
    3. (iv)
    4. 45
    5. (ii)
  6.  
    1. (iii)
    2. 8
    3. 0.83
    4. closer to Caucasian rate (there are many more of them)
    5. 473
  7. Discuss.
  8.  
    1. 0.9
    2. (ii)
    3. (ii)
    4. (i)
    5. 34.3, -.3
    6. (i)


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