The Histogram Shown Below Relates to a Study Undertaken by Baker

question 7

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?

• 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.

---

Definitions:

Phenotypic Plasticity

The capacity of a living entity to alter its physical characteristics as a reaction to varying environmental conditions.

Genetic Engineering

A field of biotechnology that involves directly manipulating the genes of organisms to modify or improve specific characteristics or produce desired products.

Dominant Genes

Genes that express their trait even when only one copy is present, overpowering recessive genes in determining certain characteristics.

Recessive Genes

Genes that produce their characteristic phenotype only when their allele is identical and not masked by a dominant allele in a heterozygous pairing.