Subject Code : DSCI352
Assignment Task:

Instructions: (DSCI 352)
1) Please write the needed R code and provide the corresponding graphics and answers to the questions posed. 
2) Place all of your R functions/code in a single R file. Please use comments to identify and separate what you do for problem 1 and 2. With respect to your graphics, please generate a PNG and copy them into a single MS Word document. You will submit 
1) an R file containing your code titled <Your Last Name>.R (example: mine would be “garcia.R”), and 
2) an MS Word document that contains your graphics and answers to questions posed, titled <Your Last Name>.docx. 
3) Finally, this assignment is to be completed without the help of other students. This includes former students who have already taken the course. 

Problem 1 (DSCI 352)
For this problem you will make several scatter plots to answer a few key questions about professor salaries. 
First, read in the Salaries.csv file included into a data frame. (Bibliographic note: This is the “Salaries” dataset found at: 
1) Do men and women make a discernable difference overall in their salaries as their time as a professor progresses? Use a SINGLE scatterplot to find the answer. (Hint: consider coloring men and women differently in your plot and using a separate trend line for each). 
2) Relative to salary, what are typical times in terms of years of service for each rank? Are some ranks more constant in duration than others, and if so which? Does salary appear to be related to time in rank for any ranks? 
3) What general relationship exists between discipline and salary as time of service progresses? In this data, discipline “A” designates a theoretical discipline and “B” designates an applied discipline. (Hint: Consider making a different trend line for the different disciplines and compare). 

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  • Posted on : March 26th, 2019

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