A Conservationist Wants to Know If the Average Water Level(in $\alpha = 0.01$

question 55

Essay

A conservationist wants to know if the average water level(in meters) in Horseshoe Lake is more than the average water level in Swan Lake. Test his hypothesis at $\alpha = 0.01$
$\begin{array}{|l|l|l|}\hline & \text { Horseshoe Lake } & \text { Swan Lake } \\\hline \bar{x} & 43 & 38 \\\hline \sigma & 3.2 & 2.4 \\\hline n & 23 & 23 \\\hline\end{array}$

---

Definitions:

Respiratory System

The biological system consisting of specific organs and structures used for gas exchange in animals and humans, notably the lungs and airways.

Hallucinogenic Drugs

Substances that alter perception, mood, and a variety of cognitive processes, often leading to visual or auditory hallucinations.

Psychological Dependence

A condition in which a person feels a compelling emotional need for a drug or substance.

Physical Dependence

A physiological state where the body develops a dependency on a substance, leading to withdrawal symptoms when the substance is not used.