Do One of the Following, as Appropriate: (A) Find the Critical

question 50

Multiple Choice

Do one of the following, as appropriate: (a) Find the critical value $z_{?/2}$ , (b) find the critical value $t_{?/2}$ , (c) state that neither the normal nor the t distribution applies
- $99 \% ; \mathrm { n } = 17 ; \sigma$ is unknown; population appears to be normally distributed.

• A) \(\mathrm { z } _ { \alpha / 2 } = 2.583\)
• B) \(\mathrm { t } _ { \alpha / 2 } = 2.921\)
• C) \(\mathrm { t } _ { \alpha / 2 } = 2.898\)
• D) \(\mathrm { z } _ { \alpha / 2 } = 2.567\)

---

Definitions:

M

In the context of concentration, M stands for molarity, a measure of the concentration of a solute in a solution, defined as moles per liter.

Equilibrium Reaction

A chemical reaction in which the forward and reverse reactions occur at the same rate, so that the concentrations of the reactants and products do not change with time.

Equilibrium Constant

A numerical value that expresses the ratio of the concentrations of products and reactants of a chemical reaction at equilibrium.

HA

Often shorthand for hydroxyapatite, a mineral form of calcium apatite; can also refer to hyaluronic acid or other context-specific chemical compounds.