Question 4 2 pts Suppose that a researcher only wants to know if treating patients with a new u drug affects their symptoms. Would this be a one tailed or two-tailed test and why? 0 One-tailed because the researcher only looks at the u drug and doesn't take other factors into account 0 Twotailed because the researcher is only looking for a difference caused by the u drug IE One-tailed because the researcher is only interested to see if the u drug makes people better 0 Twotailed because the researcher will have to study people who take the drug and people who doth take the drug