Head movement evaluations are important because disabled individuals may be able to operate com- munications aids using head motion. A paper reported the accompanying data on neck rotation (in degrees) both in the clockwise direction (CL) and the counterclockwise direction (CO) for 13 subjects. You may assume that the 13 subjects are representative of the population of adult Americans. Based on these data, is it reasonable to conclude that mean neck rotation is greater than in the clockwise direction than in the counterclockwise direction? Test the relevant hypotheses using a significance level of 0.1. Subject 1 2 3 4 5 6 7 8 9 10 11 12 13 CL 57.9 35.7 54.5 56.8 51.1 70.8 77.3 51.6 54.7 63.6 59.2 59.2 55.8 CO 44.2 52.1 60.2 52.7 47.2 65.6 71.4 48.8 53.1 66.3 59.8 47.5 64.5 Difference
Head movement evaluations are important because disabled individuals may be able to operate com-
munications aids using head motion. A paper reported the accompanying data on neck rotation (in
degrees) both in the clockwise direction (CL) and the counterclockwise direction (CO) for 13 subjects.
You may assume that the 13 subjects are representative of the population of adult Americans. Based
on these data, is it reasonable to conclude that mean neck rotation is greater than in the clockwise
direction than in the counterclockwise direction? Test the relevant hypotheses using a significance
level of 0.1.
Subject 1 2 3 4 5 6 7 8 9 10 11 12 13
CL 57.9 35.7 54.5 56.8 51.1 70.8 77.3 51.6 54.7 63.6 59.2 59.2 55.8
CO 44.2 52.1 60.2 52.7 47.2 65.6 71.4 48.8 53.1 66.3 59.8 47.5 64.5
Difference
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