data={3.2,4.5,3.7,3.3,2.5,3.6,3.3,3.6,4.2,3.5,2.0,3.1,2.3,2.9,6.9,4.5,7.3,3.0};

Export["/Users/troyday/Desktop/Transfer/BB Chapter11/data.txt",data,"TSV"]