Please answer the following

Independent random samples from two regions in the same area gave the following chemical measurements (ppm). Assume the population distributions of the chemical are mound-shaped and symmetric for these two regions. Region I:x1; 771 = 12 657 715 539 896 857 619 954 610 8581055 5141068 Region 11: x2; :72 = 16 994 793 1030 673 1122 998 920 817 1011 906 527 1053 870 888 455 559 Let 721 be the population mean for x1 and 722 be the population mean for x2. Find a 90% condence interval for m - 71-2. Round your answer to two decimal places. f\" _207.97 to 62.97 (7 $2.97 to 207.97 7'). _204.72 to 59.72 f: 59.72 to 204.72 if: 200.95 to 55.95