How does that correlate with the chart below? I know HI is the Hypopnea Index - is the number from the machine (2.1) the average per hour perhaps?
The number the LCD reports is the median, not the average. ResMed claims that the median is more Robust than the mean.
In my opinion and experience reporting the mode can make the therapy look more effective than it is. Perhaps it can also make it appear less effective, but that has not been my experience as of yet. I am not a statistician, but grudgingly have taken both undergraduate and graduate statistics courses because in order to get my pieces of paper.
In a distribution of results, the mode is the number that occurs most often, the median is the midpoint, and the mean is the average. I am quoting John B. Fisher when I say (who is paraphrasing basic stats) “the median is almost meaningless by itself and mean is worthless if we don't know the range of variance.”
I am also jealous of your results.
R