Some Birds Follow Moving Swarms of Army Ants in the Tropics

question 3

Multiple Choice

Some birds follow moving swarms of army ants in the tropics. As the ants march along the forest floor hunting insects and small vertebrates, birds follow and pick off any insects or small vertebrates that fly or jump out of the way of the ants. This is an example of what kind of species interaction?

• A) consumption
• B) commensalism
• C) mutualism
• D) parasitism
• E) competition

Determine the selling price of a job using manufacturing costs and predetermined markup percentages.

Understand the differences between departmental and plantwide overhead rates.

Calculate the total manufacturing overhead for a production department based on estimated costs.

Understand the impact of machine hours vs. direct labor hours as allocation bases for overhead rates.

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Definitions:

Lower Control Limit

The lowest value on a control chart, indicating the threshold below which a process output is considered out of control.

Sample Means

Calculated averages from different samples within a population, used in statistical analysis for comparisons.

Standard Deviation

A measure used to characterize the degree of spread or variation among a dataset's elements.

Process Distribution

It refers to the statistical distribution that characterizes how outcomes behave over a process, showing variations and their likelihood.