A few months ago we reported on a claim that more babies are born on Valentine’s Day and fewer on Halloween.
At the time, I wrote that I’d like to see a graph with all 366 days of the year. It would be easy enough to make. That way we could put the Valentine’s and Halloween data in the context of other possible patterns.
Joshua Gans sent along the following from an unpublished appendix to his paper. It’s not the graph I was asking for but it does supply additional information beyond those two holidays. Click to enlarge:
I don’t know what all those digits are doing (do you really need to know that an estimate is “-70.856″ if its standard error is “10.640″? I’d think that “-71 +/- 10 would be just fine), but I suppose the careful reader can ignore the numbers and simply read the signs and the stars. In any case, it’s good to see more data.