Answer Choices
Treatment X is likely to improve the eyesight of people who have poor eyesight.
Treatment X improves eyesight better than all other available treatments.
Treatment X will improve the eyesight of anyone who takes it.
Treatment X will cause a substantial improvement in eyesight.
Explanation for Question 15 From the Math (Calc) Section on the Official Sat Practice Test 3
Number 15. We see the question. It's a really long question. 2 So we're going to read through it and we're going to try to find 3 what information is important and what information I can use to help me write 4 an equation of sorts. Um, so starting from the beginning, 5 it says, in order to determine a treatment X is successful for improving eyesight. 6 A research study was conducted from a large population of people with poor 7 eyesight. So my population was made up of people with poor eyesight and there 8 were 300 popular, uh, participants selected at random half are 9 going to get treatment X, half or not. 10 The resulting data showed that participants who received X significantly improved eyesight, 11 or has significantly improved eyesight as compared to those who did not receive treatment 12 X based on the design, which of the following is an appropriate conclusion, 13 right? So this is what we would call, you know, stats question, 14 um, on the sat. 15 And so we know that we only sampled from a population with poor eyesight 16 and that X improve their eyesight. And so if we look at a here, 17 it says treatment X is likely to approve, 18 improve the eyesight of people who have poor eyesight. 19 And this should make sense, right? Because we did see that treatment X, 20 um, is likely to improve, right? 21 Um, because again, when you're doing a statistical study, 22 it's not necessarily extreme proof, 23 right? It's not saying it will always improve eyesight, 24 but it's lik...