Is the incidence of head or neck pain among video display terminal users related to the monitor angle (degrees from horizontal)? The paper, “An Analysis of VDT Monitor Placement and Daily Hours of Use for Female Bifocal Users” (Work 2003: 77–80), reported the accompanying data. Carry out an appropriate test of hypotheses (be sure to include a P-value in your analysis).

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Pain Yes No Sample size 32 40 Sample mean 2.20 3.20 Sample SD 3.42 2.52