GOOD MORNING COULD I GET SOME HELP WITH THIS? LAST TIME I NOT ONLY GOT AN INCORR

Question

GOOD MORNING COULD I GET SOME HELP WITH THIS? LAST TIME I NOT ONLY GOT AN INCORRECT ANSWER, BUT I GOT CHARGED! I LOVE CHEGG, BUT ITS THE LAST WEEK OF CLASS, AND I AM RECOVERING FROM MAJOR SURGERY...NOT TO MENTION I CAN BARELY ADD 2 AND 2 WITHOUT A CALCULATOR....PLEASE HELP ME BREAK DOWN AND ANSWER THIS QUESTION!!!!

Observational Study Versus Experiment Project 20 points Jefferson Community College is interested in determining if students perform better in our online courses or in the traditional classroom setting. Suppose that they approach us and want us to find an answer to their question and support it statistically. They have told us that they have 100 students registering for Mth 144 in the Spring Semester that are willing to take whichever mode (online or regular classroom) that we choose. Answer the following questions on a separate piece of paper. 1. Should we use an experiment or an observational study? Why? (2 points) 2. Design either the study or the experiment. Describe it in detail and draw a picture of it using the diagram format from Chapters 5 and 6. (4 points) 3. What are the explanatory and response variables? (2 points) 4. Are there any lurking variables in your design? If so, describe them. If not, explain why. (3 points) 5. Would it be necessary for this situation to be double-blind? Why or why not? (2 points) 6. Can we generalize the results of your design to draw conclusions about all online students at JCC? Why or why not? (3 points) 7. Suppose you also want to account for whether male or female students do better in the two different modes of learning and you have 50 males and 50 females to work with. Re-design your set-up from #2 to account for this. (Hint: Use a block design.) (4 points)

Explanation / Answer

1. Since we can only control the number of students who take the two modes of the course, an observational study would be helpful to carry out the statistical test.

2. We can divide the students into two batches of 50 students each. One batch will take the regular classroom course and the other batch will follow the online course. We can make the batches homogeneous by selecting students based on their past performance ,i.e., each batch should have almost equal number of good and bad performers. We can then measure their performance at the end of the course.

3. The explanatory variable the mode of course the students take - regular classroom or online. The response variable is the performance in the course.

4. There can be many lurking variables. For example, computer literacy might affect the performance of the students. Those students who do not have adequate computer literacy might perform poorer in comparison to their batch mates. Another lurking variable might be the size of the class in the regular classroom program. Larger the class, lower will be the interaction between the teacher and the students - which,in turn, might affect the performance of the students.

Related Questions

Navigate

• Browse (All)
• Browse G
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.