Use the Traditional Method to Test the Given Hypothesis $\alpha = 0.05$

question 66

Essay

Use the traditional method to test the given hypothesis. Assume that the population is normally distributed and that the sample has been randomly selected.
-At the $\alpha = 0.05$ significance level test the claim that a population has a standard deviation of 20.3. A random sample of 18 people yields a standard deviation of 27.1.

---

Definitions:

Closeness

The quality of feeling familiar, intimate, or emotionally connected with someone or something.

Defensive Pessimism

Thinking negative thoughts to prepare for negative outcomes.

Pessimistic Explanatory Style

Seeing bad events as all-encompassing.

Social Support

Fulfilling relationships with friends and family that provide both emotional and practical support.