代做R Quiz I Fall 2025帮做R编程

The first R Quiz will be a take-home exam on November 3rd, 2025. The exam needs to be completed anytime between 8 AM on November 3rd, 2025 and 8 AM on November 4th, 2025. In the Assignments tab, you will find the quiz and the related datasets. You must only submit your R script. (file ending with  .R containing the code). We will NOT consider any coding information  in any other formats. This means that we will only grade based on the script in the  .R file. No exceptions.

IMPORTANT:

If you do not have access to a laptop or a computer for the exam date, let us know by Friday, October 31st, 2025, so we can help you find a solution.

Do NOT write your code in the console and then copy and paste it into the R script.

None of the lines of code in your answer file should begin with “>” or any other extraneous symbols.

We will only accept submissions via Brightspace.

We will not consider any files submitted via email when grading.

Submission: Submit one document — your R script. — which includes all your code. If you need to include additional explanations or answers, write them as comments within the same R script.

Late submissions will not be considered (late means after 8 AM on November 4th, 2025).

There are no exceptions. This means you need to time your quiz appropriately. For instance, if you try to upload your Quiz by 7:50AM on November 5th, 2025 and you face technical difficulties and upload your Quiz late, we will consider it as late and you will get a zero. Time your Quiz and submission appropriately.

You cannot work in a group or ask questions to your classmates related to R/the quiz until the submission deadline has passed.

Before you start, make sure you have installed and loaded these packages: haven, ggplot2, dplyr, tidyverse, stargazer, foreign. This is a subset of key packages that you will need.

Review material R Quiz I: (1) assignment 1 to 7’s questions related to R (i.e. data questions and questions with R codes as answers). (2) Swirl Modules (1-15). The questions on the exams will be inspired by the assignment questions and the swirl modules.

The day of the R Quiz: We will be holding the regular class time so you can answer your R quiz in class in our presence.

1.  We will not answer questions (including how to download R/how to install packages).

2.  You should already have R and the related packages on your computer before the Quiz day.

If you have questions about R and R package installation, please contact us before the exam.