A Report in the Des Moines Register Presented the Average

question 27

Essay

A report in the Des Moines Register presented the average number of years of
teaching experience for the teachers in elementary schools in Des Moines, Iowa.
These data appear in the table below. $\begin{array}{|l|l|l|c|l|l|l|c|}\hline \text { School } & \begin{array}{c}\text { Average } \\\text { Years } \\\text { Exper. }\end{array} & \text { School } & \begin{array}{c}\text { Average } \\\text { Years } \\\text { Exper. }\end{array} & \text { School } & \begin{array}{c}\text { Average } \\\text { Years } \\\text { Exper. }\end{array} & \text { School } & \begin{array}{c}\text { Average } \\\text { Years } \\\text { Exper. }\end{array} \\\hline \text { Adams } & 13.8 & \text { Hanawalt } & 12.7 & \text { McKee } & 17.5 & \text { Phillips } & 10.5 \\\begin{array}{l}\text { Capitol } \\\text { View }\end{array} & 9.7 & \text { Hillis } & 17 & \text { McKinley } & 5.6 & \text { Pleasant } & 12.8 \\& & & & \text { Hill } &\\\text { Cattell } & 8.5 & \text { Howe } & 14.9 & \text { Mitchell } & 6.2 & \begin{array}{l}\text { River } \\\text { Woods }\end{array} & 5.9 \\\text { Douglas } & 13.8 & \text { Hubbell } & 15.1 & \text { Monroe } & 16.2 & \text { Stowe } & 16.5 \\\text { Downtown } & 7.0 & \text { Jackson } & 16.8 & \text { Moore } & 16.6 & \text { Studebaker } & 18.4 \\\text { Edmunds } & 8.4 & \text { Jefferson } & 19.2 & \text { Morris } & 9.9 & \text { Wallace } & 4.8 \\\text { Findley } & 14.9 & \text { King } & 7.0 & \text { Moulton } & 8.6 & \text { Willard } & 9.7 \\\text { Garton } & 9.3 & \text { Longfellow } & 9.8 & \text { Oak Park } & 11.4 & \text { Windson } & 17.7\\\text { Granger } & 17.2 & \text { Lovejoy } & 9.9 & \text { Park } & 11.4 & \text { Woodlawn } & 17\\\text { Greenwood } & 14 & \text { Madison } & 20.8 & \text { Perkins } & 11.2 & \text { Wright } & 12.9 \\\hline\end{array}$ (a) Sketch a histogram for these data, using the following class intervals:
$$\begin{array} { l } 0 \text { to } < 4 \\4 \text { to } < 8 \text {, etc. }\end{array}$$ (b) Describe the distribution of the average number of years of teaching experience,
and note any unusual features.

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Definitions:

Tactics

Specific actions or strategies designed to achieve a particular objective, often within the context of competition or conflict.

Autonomous Motivation

Motivation that originates internally, driving individuals to engage in activities for the inherent satisfaction or personal reward they provide.

Competence

The ability to do something successfully or efficiently, involving knowledge, skill, and aptitude.

Relatedness

The need to have meaningful connections with others, influencing one's social interactions and sense of belonging.