October saw job growth stunted by hurricanes and worker strikes. Four days before Election Day, the government will issue its final snapshot of hiring and unemployment in the United States after a presidential race in which voter perceptions of the economy have played a central role.Yet Friday’s report will include some of the most distorted monthly employment figures in years, with job growth having been held down temporarily in October by hurricanes and worker strikes.So just as voters, politicians and Federal Reserve officials are looking for a clear read on the economy, they instead will get a muddied one.