Question

PROBLEM 1 Problem statement: As the instructor of STA 3032 for the past several years, I am interested in collecting data on students who have taken my course in the past 3 years to determine factors that impact their 4-year completion rate. Questions: Identify 4 variables I may be interested in collecting data on. Provide rationale as to why you selected those variables. Indicate if each variable is numerical or categorical. When designing the study, would you collect data on every student who has taken the course?Why or why no Would you describe the data set as univariate or multi-variate? PROBLEM 2 Using the data set provided, please answer the questions below. The data set represents student scores on Exam 1.

Answer 1

The variables that can be used are student's score in the first exam, student's score in the final exam, student's challenges with the course, and whether the student completed all the course.

What is a variable?

A variable can be defined as a factor that is considered when studying a phenomenon

What variables can this structure use?

Although there are many possible variables, these four variables are appropriate because they directly relate to the phenomenon this person wants to study.

• Score of the first exam.
• Score of the final exam.
• Students' challengEs with the course.
• Student's status by the end of the course (completed or not completed).

Are these variables numerical or categorical?

The first two variables are numerical because you can describe scores only through numbers. However, the two last variables are categorical, for example, challenges can be described based on categories such as difficulties understanding the content, exams, homework, etc.

Would he collect data on every student that has taken the course?

Considering there are many students and it might be very challenging to collect data of all the students, the best for this instructor is to collect a sample or to randomly select a representative number of students and use the information collected to conclude all students.

Is this univariate or multivariate?

This study is multivariate because multiple variables or factors are involved. A univariate study will involve only one factor.

Learn more about variables in: https://brainly.com/question/787279