An Instructor Divided Her Class into Four Groups and Asked $f$

question 18

Essay

An instructor divided her class into four groups and asked them to keep track of the number of soft drinks that they consume per week. In preparation for using the Kruskal-Wallis test to support or reject an hypothesis about the behavior of the different groups, combine and rank the following data. Find the sum of the ranks $f$ group.

$\begin{array}{l}\text { Soft Drinks Consumed per Week }\\\begin{array}{c|c|c|c}\text { Group A } & \text { Group B } & \text { Group C } & \text { Group D } \\\hline 7 & 4 & 2 & 3 \\10 & 20 & 5 & 9 \\14 & 6 & 13 & 16 \\12 & 11 & 15 & 17 \\8 & 9 & 10 & 18\end{array}\end{array}$

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Definitions:

Gilded Age

A term describing the late 19th century in the United States, characterized by rapid economic growth, material excess, and widespread political corruption.

Second Industrial Revolution

A period of rapid industrial growth and technological advancement in the late 19th and early 20th centuries, marked by the widespread use of steel, electric power, and internal combustion engines.

Trans-Mississippi West

The region of the United States that lies west of the Mississippi River, an area that experienced significant settlement and development during the 19th and early 20th centuries.

Agriculture

The science, art, and practice of cultivating the soil, growing crops, and raising livestock, serving as a foundational component of the global economy.