Need to do chi square analysis on occurrences of a rare
Need to do chi square analysis on occurrences of a rare disease in an rural area of 1000 people vs. national averages for this rare disease. Data is based on different age groups:
|
Age Ranges |
% with disease |
|
0 <age </= 20 |
2% |
|
20<age</=40 |
5% |
|
40<age</=60 |
15% |
|
age >60 |
20% |
Rural
|
Age Ranges |
% with disease |
|
0<age</=20 |
30 |
|
20< age </= 40 |
200 |
|
40<age</=60 |
220 |
|
age >60 |
185 |
Looking at national data, what is expected value of rural with disease?
Is disease incidence significantly different than national?
What are standardized residuals?
Interpret results.