Question: What inferential statistic would you choose to test the following:

1. There is a positive relationship between patient's rating of pain using the Visual analog Scale and the amount of pain medication they receive.
2. The annual income among male and female doctors differs significantly
3. There is a significant difference in the length of hospitalization among patients admitted from home rehab facilities and nursing homes.
4. there is significant between test scores for students who received mcas training and those who received other training
5. SAT scores, age, and grades in HS are predictors of academic performance in college

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