You are interested in researching whether or not A biology students who use a test prep book perform better on the cxam than those who do nol use a test prep book. You take 60 random students and give 30 of them a test prep book, while the other 30 will use the resources they already have. Aner the students take the exam, you analyze the data and find that, of the students who used a lest prep book, 26 passed. For the sludents who used only the resources they already had, you found that 12 passed. With his data would you suggest lo future students to uso a test prep book