5. Nine subjects were used in an experiment to determine if exposure to carbon monoxide has an impact on breathing capability. The Subjects were exposed to breathing chambers. one ofwhich contained a high concentration of [0. Breathing frequency measures were made for each subject for each chamber. The subjects were exposed to both breathing chambers in random sequence. The data give the breathing frequency, in number of breaths taken per minute. Assume normaiity. Subject 1With CD Without CO 1 30 30 2 45 4D 3 26 25 4 25 23 5 34 30 6 51 49 3" 46 41 8 32 35 9 30 28