When Testing to Determine If Correlation Is Significant, We Use $H _ { 0 }$

question 25

Essay

When testing to determine if correlation is significant, we use the hypotheses $H _ { 0 }$ p=0 , $H _ { 1 } : \rho \neq 0$ What does the symbol $\rho$ represent? Explain the meaning of the null and alternative hypotheses.

---

Definitions:

Diffusion

The passive movement of molecules or particles from an area of higher concentration to an area of lower concentration until equilibrium is reached.

Cardiac Output

The volume of blood the heart pumps through the circulatory system in one minute.

Stroke Volume

The amount of blood pumped by the left ventricle of the heart in one contraction.

Heart Rate

The number of heart beats per minute, a vital sign indicating the health and fitness level of an individual.