Hey if anyone can solve this it would mean loads (with explanation pls)

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

40 describe the outliers from the scatter plot.

4. a single woman uses an online cash flow calculator which reveals a cash flow of 203. what does this mean?