European Factors to Watch - Shares seen mixed ahead of PMIs

LONDON, July 3 (Reuters) - European stocks were seen mixed on Friday ahead of economic survey data later in the session, with focus on the Greek debt crisis heading into a crunch weekend. As angry and uncertain voters prepare for a referendum on Sunday that could decide Greece's future in Europe, the International Monetary Fund delivered a stark warning on Thursday of the huge financial hole facing the country. On Thursday, the pan-European FTSEurofirst 300 index fell 0.4 percent whil