Stocks slid Friday after a slate of earnings beats from big banks fueled concerns that the Federal Reserve will raise interest rates at its next two meetings.Still, the major indices gained for the week. The Dow rose 400 points, or 1.2%. The S&P 500 gained 0.8% and the Nasdaq Composite advanced 0.3%.JPMorgan Chase on Friday reported first-quarter profit and revenue that crushed expectations, boosted by the Fed’s interest rate hiking campaign. Citigroup, Wells Fargo and PNC Financial also reported strong results.CEO Jamie Dimon warned investors in the company’s post-earnings conference call…