When Wildlife Biologists Study Small Animals, the Animals Are Trapped

question 3

Essay

When wildlife biologists study small animals, the animals are trapped and thenanesthetized to prevent discomfort to the animal. A study of the effect of theanesthetic, Isoflurane, on eastern gray squirrels (Sciurus carolinensis) resulted in thepulse data presented below. The biologists were interested in comparing the effectsof Isoflurane in two different seasons, winter and summer.
An initial analysis of the data revealed that it was reasonable to assume thedistribution of pulses for each season is approximately normal. It was also judged tobe reasonable to regard these samples as representative of the eastern gray squirrelpopulation.
a) Test the hypothesis of no difference in eastern gray squirrel mean pulse for winterand summer.
b) Do the data indicate that the mean pulse differs for the two seasons?
Provide anappropriate statistical justification using your response in part (a).

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Definitions:

Methodology

A system of methods used in a particular area of study or activity, particularly in research.

Context

The circumstances or setting in which a research study is conducted, including cultural, environmental, and temporal factors that may affect outcomes.

Skilled Observers

Skilled observers are individuals trained to accurately notice and record behaviors or phenomena as part of a research study or observational assessment.

Gaining Access

The process of obtaining permission or entry into a field setting or data source for conducting research.