1. Suppose that an experiment finds that a certain drug is effective with a p-value of This means:
There is a 3% chance that the drug “works”
There is a 3% chance that the drug doesn’t work
If the drug didn’t work, there is a 3% chance of getting similar or better results in an experiment
The drug will work for 3% of the people

2. significant at 1%. not significant at 1%. significant at 10%.
A researcher reports that a test is "significant at 5%." This test will be:
significant at 1%.
not significant at 1%.
significant at 10%.

3. A researcher wants to know if tougher sentencing laws have had a positive effect in terms of deterring crime. He plans to select a sample of states which have enacted a "3 strikes" law and compare violent crime rates before the law was enacted and two years later. The correct set of hypotheses to test are:

4. If a result from testing a drug is statistically significant,
The result is important
The drug helps a lot
Both
Neither

5. Answers
C,C,A,D,