Homeschoolers are constantly called upon to defend their educational choices. Here are some very valuable statistics (based on American homeschooling, where it is most prevalent), about test scores, teacher qualifications and social/community engagement, as well as some background on the history of the homeschooling movement.
It may surprise you to realize that public schooling, as we know it is a relatively recent development, beginning in the late 1800s. Prior to that, all parents were responsible for the education of their own children. Although this is not specifically addressed in this presentation, it is also interesting to note that public education did not raise the literacy rate of children. If anything, the opposite occurred.
Perhaps the most interesting statistic from this presentation is how little difference there is between the success of homeschooled children whose parents are trained–or even have college education–and those who have no such training or higher education. So if you feel inadequate for the task, well, join the club, but that can no longer be your excuse not to homeschool :)
Have a look for yourself. Some of the other facts may surprise you, too (sources noted at the bottom):