The number of people selecting health insurance plans in the federal and state marketplaces increased last month at a brisk pace, bringing the overall figure to nearly 365,000, the Obama administration said on Wednesday. The November number was more than double the one for October, but still well below the administration's goal. The new enrollment data became available as Kathleen Sebelius, the secretary of health and human services, clashed again with Republicans at a hearing of the House Energy and Commerce Committee.