To see if you can learn to do surgery on youtube, a sample of medical resident volunteers were randomly assigned to two groups. One group was assigned to 3 hours of in-person instruction concerning how to do the procedure. The other group was instructed to find as much information as possible in 3 hours by watching youtube videos. After the three hour instructional period, all of the students were given surgery models and were observed and rated while attempting to perform the surgery. What type of analysis would be appropriate for this study?

Group of answer choices

Independent samples t-test

z-test

one-sample t-test

paired samples t-test

None