3. Dr. Hogan was interested in the effects of test anxiety on concentration abilities. He measured student anxiety levels when the students arrived at his laboratory and then again immediately before taking an examination using an anxiety questionnaire. Dr. Hogan hypothesized that participants in his study would have higher anxiety scores immediately prior to the completion of the exam compared to when they first came in. As hypothesized, Dr. Hogan found that participants' anxiety scores were significantly higher immediately prior to the examination compared to baseline scores. As a result of this information, what type of t test was Dr. Hogan MOST likely to use to test his hypothesis? Is Dr. Hogan's hypothesis test one-tailed or two-tailed? Explain your answers