Use the Following Sample Data to Answer the Next

question 32

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.

-Identify the critical value .

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Definitions:

Naps

Short periods of sleep, typically taken during the day, that can help improve mood, alertness, and performance.

Insomnia

A sleep disorder characterized by difficulty falling asleep, staying asleep, or obtaining restorative sleep, leading to impaired daytime functioning.

Sleep Apnea

A disorder marked by repeated interruptions of breathing during sleep due to the blockage of the upper airways or improper brain signals.

Narcolepsy

A condition where an individual experiences overwhelming sleepiness during the day and unexpected sleep episodes.