Suppose that an experiment finds that a certain drug is effective with a p-value of 0.03. 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

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%.

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:  

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

Answers C,C,A,D,