Sat scores the sat is a test often used as part of an application to college. sat scores are between 200 and 800, but have no units. tests are given in both math and verbal areas. sat-math problems require the ability to read and understand the questions, but can a person’s verbal score be used to predict the math score? verbal and math sat scores of a high school graduating class are displayed in the scatterplot, with the regression line added.

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.