Message to readers: straightstatistics.org has recently been invaded by growing numbers of spam commenters trying to sell Nike shoes, or simply being a nuisance. To try to deter those who are spamming robotically, the captcha (the letters you have to type in when filing a comment) has been made more difficult to read.
 
It’s now very difficult indeed. If at first you don’t succeed, try again. If you still can’t get the comment through after several efforts, send an email of complaint through the Contact Us button and we’ll think again.