The Des Moines Register Article in Problem $\# 2$

question 20

Essay

The Des Moines Register article in problem $\# 2$ also related the percent of children eligible for Free and Reduced lunch to teacher experience. The percent of children eligible for Free/Reduced lunch is an indicator of the socio economic status of a neighborhood. The Register was concerned that less experienced teachers typically teach students from low income families. The accompanying scatter plot displays the data from the article.


(a) If lesser experienced teachers typical ly teach students from low-income families,
what sort of trend or pattern should appear in the scatter plot?
(b) Does this trend or pattern emerge in these data? Explain, referring to specific
aspects of the scatterplot.

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Definitions:

Average Diameters

The mean value of diameters measured across different points or objects, providing a single representative dimension.

Natural Variations

Variations that occur in processes due to inherent differences in materials, equipment, and environmental conditions, and are expected within certain limits.

Specific Cause

A distinct and identifiable cause that leads to a particular effect or outcome, often investigated in problem-solving processes.

Acceptable Quality Level (AQL)

The quality level of a lot considered good.