The ucdavis1 data frame gives information on a random sample of students from the University of California at Davis. One variable, Seat, records where the student preferred to sit in a classroom (Front, Middle or Back), and another variable, Sex, says whether or not the student was a male or female student. We are interested in the following Research Question: Do male and female students at UC-Davis differ in their seating preferences, and if so, how? Should the data we gathered to study this question be considered an observational study or an experiment? Select the best answer. Group of answer choices ( ) It's an experiment, because we took a random sample from the population. ( ) It's an experiment because we manipulated something about the situation, and then recorded the value of the response variable Seat for each subject. ( ) It's an observational study, because the explanatory variable (sex) was not assigned to subjects by the researchers who collected the data. The researchers simply recorded the sex of each subject. ( ) It's an observational study, because we took a random sample from the population.
Seating and the Liberal Arts at UC-Davis II
The ucdavis1 data frame gives information on a random sample of students from the University of California at Davis. One variable, Seat, records where the student preferred to sit in a classroom (Front, Middle or Back), and another variable, Sex, says whether or not the student was a male or female student.
We are interested in the following Research Question:
Do male and female students at UC-Davis differ in their seating preferences, and if so, how?
Should the data we gathered to study this question be considered an observational study or an experiment?
Select the best answer.
-
( ) It's an experiment, because we took a random sample from the population.
-
( ) It's an experiment because we manipulated something about the situation, and then recorded the value of the response variable Seat for each subject.
-
( ) It's an observational study, because the explanatory variable (sex) was not assigned to subjects by the researchers who collected the data. The researchers simply recorded the sex of each subject.
-
( ) It's an observational study, because we took a random sample from the population.
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