In Testing for Differences Between the Means of 2 Related $n - 1$

question 77

Short Answer

In testing for differences between the means of 2 related populations where the variance of the differences is unknown, the degrees of freedom are a) $n - 1$ .
b) $n _ { 1 } + n _ { 2 } - 1$ .
c) $n _ { 1 } + n _ { 2 } - 2$ .
d) $n - 2$ .

---

Definitions:

Glucagon

Hormone, produced by the pancreas, that stimulates the liver to break down glycogen, thus raising blood glucose levels.

Glycogen

Storage polysaccharide found in animals; composed of glucose molecules joined in a linear fashion but having numerous branches.

Testosterone

A steroid hormone that plays a key role in the development of male reproductive tissues, as well as promoting secondary sexual characteristics such as increased muscle and bone mass.

Hair and Muscular Tissue

Hair and muscular tissue represent distinct types of tissue in the body, with hair composed of keratinized cells for protection and insulation, and muscular tissue composed of fibers that contract to produce movement.