Diagnostics (cont.)
Analysis of editing and imputation rules
While the distribution of birth dates may show some evidence of seasonality and the number of days in each month is not the same, these two effects are seldom extreme, so one would expect a roughly uniform distribution of births by month.
Question: If the distribution of births by month was uniform, what percentage of births (to one decimal place) would one expect to find in each month?
The correct answer is: 8.3 %
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The figure below shows the distribution of months of births for women.
