Instruction 3-3
the Stem-And-Leaf Display Below Represents the Number of Vitamin

question 125

Short Answer

Instruction 3-3
The stem-and-leaf display below represents the number of vitamin supplements sold by a health food store in a sample of 16 days.
$$\begin{array} { | l | l | } \hline \text { Stem } & \text { Leaves } \\\hline \text { 1H } & 99 \\\hline \text { 2L } & 0023 \\\hline \text { 2H } & 567 \\\hline \text { 3L } & 034 \\\hline \text { 3H } & 568 \\\hline \text { 4L } & 1 \\\hline\end{array}$$ Note (1): 1H means the "high teens" = 15, 16, 17, 18, or 19; 2L means the "low twenties" = 20, 21, 22, 23, or 24; 2H means the "high twenties" = 25, 26, 27, 28, or 29, etc.
Note (2): For this sample, the sum of the observations is 448, the sum of the squares of the observations is 13,356, and the sum of the squared differences between each observation and the mean is 812.
-Referring to Instruction 3-3,the third quartile of the number of vitamin supplements sold in this sample is _____________ .

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Definitions:

Labor Unions

Organizations that represent the collective interests of workers, negotiating wages, benefits, and working conditions with employers.

Mainstream Economics

The dominant school of thought in economics, focusing on the analysis of market behavior and the allocation of resources through the price mechanism.

Institutional Labor Economics

A branch of economics that studies the way institutions and societal norms impact labor markets, employment, and wage setting.

Perfect Competition

A market structure characterized by a large number of small firms, identical products, and easy entry and exit for businesses, leading to optimal distribution of resources.