Explanation for Question 14 From the Math (Calc) Section on the 2017 May Sat
Question four teams test to determine if cooking with olive oil reduces 2 the risk of Harper. And for men, researchers interviewed a random sample of 5,500 3 men who had no history of heartburn study participants were identified 4 as either regular or occasional olive oil users. 5 Five years later, researchers interviewed the men again. 6 They found that the proportion of men who experience frequent heartburn was significantly lower 7 for men identified as regular olive oil users, 8 which of the following is the most appropriate conclusion of the study. 9 So we're going to go through these answer choices and see which one kind 10 of holds true. It says olive oil causes a reduction in the 11 risk of heartburn for men and women. 12 Couple of reasons why this is wrong. First off, 13 the most obvious it mentions woman. 14 This study or sample is made up of 5,500 men. 15 There's only men in this study. 16 So it can't represent, um, any, 17 um, conclusions for women. 18 Also, we don't know that there's a cause and effect relationship. 19 There's a lot of other factors involved their sample, 20 um, that says that they had no history of heartburn. 21 Also causes a little bit of an issue there. 22 We can just determine that olive oil is the recent four, 23 um, reduction in heartburn. So we're going to cross that one out and go 24 on to choice B olive oil causes a reduction 25 in the risk of Harper and for men, but not necessarily, 26 not necessarily for women, so a little better. 27 A...