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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.  School  Average  Years  Exper.  School  Average  Years  Exper.  School  Average  Years  Exper.  School  Average  Years  Exper.  Adams 13.8 Hanawalt 12.7 McKee 17.5 Phillips 10.5 Capitol  View 9.7 Hillis 17 McKinley 5.6 Pleasant 12.8 Hill  Cattell 8.5 Howe 14.9 Mitchell 6.2 River  Woods 5.9 Douglas 13.8 Hubbell 15.1 Monroe 16.2 Stowe 16.5 Downtown 7.0 Jackson 16.8 Moore 16.6 Studebaker 18.4 Edmunds 8.4 Jefferson 19.2 Morris 9.9 Wallace 4.8 Findley 14.9 King 7.0 Moulton 8.6 Willard 9.7 Garton 9.3 Longfellow 9.8 Oak Park 11.4 Windson 17.7 Granger 17.2 Lovejoy 9.9 Park 11.4 Woodlawn 17 Greenwood 14 Madison 20.8 Perkins 11.2 Wright 12.9\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:
0 to <44 to <8, etc. \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.


Definitions:

Gross Profit

The difference between revenue and the cost of goods sold before deducting overhead, payroll, taxation, and interest payments.

Performance Analysis

The evaluation of the performance of a company, investment, or employee, often through the analysis of various financial metrics and ratios.

Profit Center

A segment or branch of a business responsible for generating its own revenue and profit.

Data Processing Department

A department within an organization that processes and manages data, turning raw data into usable information.

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