Use the Following Sample Data to Answer the Next

question 9

Short Answer

Use the following sample data to answer the next questions. Certain creeks
tend to accumulate sandbars that block water flow and negatively affect fish
habitat. Biologists researching the formation and erosion of these sandbars
attempted to discourage sandbar buildup by installing wood structures that would
increase erosion in the creekbed. Researchers added differing numbers of wood
structures to two similar, adjacent study creeks. Fish response was then measured
by randomly sampling the number of fish at 11 equally-sized portions of the
creeks. Use the Wilcoxon Rank-Sum Test with a .05 significance level to test the
claim that, after adding the wood structures, both creeks have samples that come from populations with the same median number of native fish.

-Determine the value of the test statistic.

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Definitions:

Vending Machines

Automated machines that dispense goods such as snacks, beverages, and tickets to consumers after payment.

Points of Difference

Unique features or benefits of a product, brand, or service that set it apart from its competitors in the eyes of the consumer.

Chobani Yogurt

A brand of Greek yogurt known for its high protein content, natural ingredients, and wide range of flavors, representing a prominent player in the yogurt market.

Preservative-Free

Describes products, especially food and beverages, that do not contain artificial preservatives to extend their shelf life.