A random survey of enrollment at 20 community colleges across the United States yielded the following figures: 21,921; 2,192; 9,414; 7,681; 3,200; 17,500; 9,200; 7,380; 18,314; 6,557; 13,713; 17,768; 7,493; 2,771; 2,861; 1,263; 7,285; 28, 165; 5,080; 11,833.(d) Construct a 90% condence interval for the population mean enrollment at community colleges in the United States. Enter your answer in interval notation. Round your answer to the nearest integer. Do not round any intermediate calculations. (5381.95, 1477.15) 0 a; a