The Histogram Shown Below Relates to a Study Undertaken by Baker

question 4

Multiple Choice

The histogram shown below relates to a study undertaken by Baker et al. (2003) of the impact of roster changes on absenteeism and incident frequency in an Australian coal mine. The average monthly absenteeism rates in the three specific work areas examined, according to collection period. The authors state that 'there was a trend for increased rates during the second (3.11%) and third (3.72%) collection periods within the CPP sector, compared to the first (1.87%) , F(2,24) = 2.441, p > 0.05.' What does this result explain? Source: http:/ / oem.bmj.com/ content/ vol60/ issue1/ images/ large/ om01240.f3.jpeg

• A) Maintenance in period 3 was significant.
• B) The trends were not significant.
• C) Sector in period 1 was least significant.
• D) The trends were significant.

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