The logic of statistical inference, what are three points that we need to ponder?
If we use 3 percentile cut off point for growth chart, we will miss-classify 3% of normal children. If we choose 5 percentile, 5% are misclassified,…
But, the probability that we misclassify the malnourished/overweight child in more than 3%, 5%,… How much higher? Depends on the country. Higher in severely malnourished country.
We will also mis-classify some abnormal children as normal