A study is designed to determine whether or not taking four

Last updated: 7/8/2022

A study is designed to determine whether or not taking four years of math in high school helps students' acceptance rate at NC State. At a certain high school 300 students were not permitted to take a fourth year of math and 300 students were required to take a fourth year of math. . In comparing the acceptance rates of the 600 students at NC State it is noted that the average entrance rate for those who took a fourth year of math is higher than those who took three years of math. . Based on this experiment, guidance counselors began recommending a fourth year of math for college bound students. Which of the following is false? In order to make a better inference for the population instead of taking students from one high school - the researchers could take an SRS from high schools across the state. This design could be improved by randomly assigning 300 students to take a fourth math class and randomly assigning 300 students to take a third math class. Therefore cause and effect could be established. A more meaningful study would be to do an observational study on an SRS of students who have already signed up for a third of fourth year of math. This design is excellent for establishing cause and effect. Both random assignment and random selection present.