Assignments and due dates for each chapter are announced in class. Typical problems include:
Use the traditional method rather than the p-value method. Ignore any parts of a question about the p-value method.
8-2 page 383
2 to 40, even numbered problems
8-3 page 394
2 to 24, even numbered problems
8-5 page 411
2 to 28, even numbered problems
8-6 page 421
2 to 20, even numbered problems
8-3 Hypothesis Tests: Claims about a Proportion p
To test a claim about p, use a z distribution Table A-2
Examples of claims (hypotheses) about a proportion, p that can be tested:
| Original claim (English) | Original claim (math) |
|---|---|
| An anti-smoking group claims that the proportion of all college graduates who smoke is less than 25%. | p < 0.25 |
| The proportion of subjects who experienced unpleasant side effects is 10% at most. | p ≤ 0.10 |
| A web site claims the proportion of people who believe extra-terrestrials are among us is at least 1 in 5. | p ≥ 0.20 |
| 55 percent of the voters in Vermont approve of Governor Douglas. | p = 0.55 |
Technique to be learned: Perform a hypothesis test for a claim about a proportion of a single population.