On Discovering an Improperly Adjusted Drill Press, Jack Joyner, Director

question 30

Multiple Choice

On discovering an improperly adjusted drill press, Jack Joyner, Director of Quality Control, ordered an inspection of every fifth casting drilled during the evening shift. Less than 1% of the castings were defective; so, Jack released the evening shift's production to assembly. This is an example of ___.

• A) categorical data
• B) quantitative data
• C) descriptive statistics
• D) inferential statistics
• E) judgmental statistics

---

Definitions:

Homogeneity Of Variance

The assumption that multiple groups have equal variances on a tested variable, important for certain statistical tests.

Heterogeneity Of Variances

A condition in which different groups or samples have variances that are not similar, posing challenges for certain statistical tests that assume homogeneity of variances.

Equality Of Variance

A statistical property indicating that two or more groups have the same variance or variability within their data points.

Stability Of Variance

The consistency of variance across the range of data, implying that variance does not significantly fluctuate.