Statistics and Probabilitywhich option from the bottom connect to the reading? for example "small sample size" option doenst connect becasue theres a large amount of students in this research

One thing that many students think about when they register for classes at a university is how many textbooks they are going to have to buy for the class and how much the books are going to cost. To add to this, a lot of the students wonder if they are even going to use the books that they are required to buy. In fact, some students don't buy books for their classes because they are convinced that they don't really need them to achieve an acceptable grade. This is exactly the line of thinking that textbook writers are afraid of-they want students to have to use their books to get good grades in their classes, and they want professors to think that students need their books so that they require them as part of their classes. Even though textbooks have a definite value-they are available to students who use them when their professors are not-there is some debate on whether they are really needed as part of university classes. Recently, a researcher conducted an experiment to address this question. In the experiment, the researcher compared two sections of his introductory statistics course, a course required for all liberal arts and sciences students. Students who were enrolled in the fall semester of the course were told that buying the textbook was antionalRecently, a researcher conducted an experiment to address this question. In the experiment, the researcher compared two sections of his introductory statistics course, a course required for all liberal arts and sciences students. Students who were enrolled in the fall semester of the course were told that buying the textbook was optional, whereas students enrolled in the spring semester were told that buying the textbook was required. All 380 of the students (190 in the fall and 190 in the spring) completed the course, and they all took the final exam, which consisted of some calculations and several conceptual essay questions. When the professor finished scoring the essays, he compared the final exam grades of both sections of the class. He found just what he thought he would-there were no differences in the scores on the exams between the section that thought the textbook was optional and the section that thought the textbook was required. The average grade for the fall semester was 84.3%, and for the spring semester it was 85.2%. Based on this study, the researcher concluded that textbooks were not necessary or helpful for learning, since there were no differences in scores between the two sections.O No control or comparison group O No random assignment V Participant bias O Small sample size Poor sample selection O Attrition or mortality Experimenter bias Confuse correlation with causality O DV is not reliable, precise or accurate O DV is not valid O DV is not objectively scored O Premature generalization of results