question 55

Essay

$$\text { Under what circumstances can you replace } \sigma \text { with } s \text { in the formula } E = z _ { a / 2 } \cdot \frac { \sigma } { \sqrt { n } } ?$$

---

Definitions:

Empiricism

A theory in epistemology that states knowledge comes only or primarily from sensory experience.

Observations

The act of monitoring or recording systematically selected variables or behaviors in research to gather data.

Assumption

A statement taken for granted or accepted as true without proof, used as a basis for reasoning or argument.

Quantitative Research

A research method focusing on obtaining data that can be quantified and analyzed statistically to draw conclusions and test hypotheses.