Create the data frame of Problem Set 1, Question 3 using R code and save it into the object my_classmates. Question 3 Survey respondents are often asked questions containing answer choices belonging to what is called Likert Scale. part a Visit the Wikipedia page for the Likert Scale and create a vector containing the options within a typical, five-level Likert Scale. part b Then, use the factor() function to sort the levels of the vector you made in part a from decreasing to increasing