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.

Acquaint with the principle of standard costing system and its application to direct materials and labor.

Understand the impact of activity levels on budget variances and efficiency.

Learn the process of evaluating performance through variance analysis of manufacturing overhead.

Understand the concept of flexible budgets and how they adjust to different levels of activity.