An engineer is studying the slight differences in the length of roofing shingles that is being produced at his roofing company. These differences fall within the specification of the product. This is an example of common-cause variation.

The statement is: True.

Explanation:

A common-cause variation shows changes because of unknown reasons within a series of undifferentiated produced items. The method aims to measure the accuracy of the manufacturing process given expected factors that could bring fluctuations in the output. Common-cause variations can be attributed to natural reasons such as employees' fatigue or distraction.

When I was thirteen years old, we left our hometown for the last time. I was forced to start high school in a strange place. It was hard, but I learned that being thrown into a new environment can be great.

Explanation:

It eez what it eez