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)

[ Home | Calendar | Assignments | Handouts ]