Federal Reserve Leaves Key Overnight Interest Rate Unchanged In 3.75-4.00% Range, Says Accumulation Of More Information Will Help Determine Appropriate Policy Stance; Says Inflation Remains Elevated; Economic Activity Expanding At A 'Strong' Pace; Job Gains Have Kept Pace With Workforce, Unemployment Rate Has Changed Little; Productivity Growth Is Strong, Capital Investment Is Robust; Domestic Spending Has Been Resilient Despite Elevated Uncertainty