WeiWei is interested in determining whether Georgia Southern Armstrong students during COVID-19 are feeling more stress than college students in general. She asks people to fill out a brief 10-item rating scale about stress, where a higher rating indicates more stress. She then compares her data to a nationwide sample of college students who have filled out the same measure (mu = 7.6); the population standard deviation is 1.3. Both of these groups' data are positively skewed. What test should she pick to test her hypothesis? Question 3 options: a) Dependent samples t-test b) One-sample z-test c) One-sample t-test d) Independent samples t-test