Head movement evaluations are important because disabled individuals may be able to operate communications aids using head motion. The paper Constancy of Head Turning Recorded

Head movement evaluations are important because disabled individuals may be able to operate communications aids using head motion. The paper €œConstancy of Head Turning Recorded in Healthy Young Humans€ (Journal of Biomedical Engineering [2008]: 428€“436) reported the accompanying data on neck rotation (in degrees) both in the clockwise direction (CL) and in the counterclockwise direction (CO) for 14 subjects. For purposes of this exercise, you may assume that the 14 subjects are representative of the population of adult Americans. Based on these data, is it reason-able to conclude that mean neck rotation is greater in the clockwise direction than in the counterclockwise direction? Carry out a hypothesis test using a significance level of 0.01.

Subject: 245 67 CL: 57.9 35.7 54.5 56.8 51.1 70.8 77.3 CO44.2 52.1 60.2 52.7 47.2 65.6 71.4 Subjct: 8 9 10 2 3 14 516 54.7 63.6 59.2 59.2 55.8 38.5 CO: 48.8 53.1 66.3 59.8 47.5 64.5 34.5