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STA238 - Winter 2021
Assignment 4 Instructions
This is a group assignment. You are expected to work on this in a group of up to for 4. Your group-mates
can consist of students in either lecture section. You are expected to work exclusively with your group-mates
and not other groups. You are more than welcome to discuss ideas, code, concepts, etc. regarding this
assignment with your class mates. Please do not share your code or your written text with peers outside
of your group. It is expected that all code and written work should be written by members of your group
(unless they are taken from the materials provided in this course or are from a credible source which you
have cited). You have the option to work in a group of smaller than 4, but please note that we do not
recommend this, as the workload of this assignment is for groups of size 4. Please note, this assignment is
fairly open, so the context of most of the work completed here should not match that of other groups.
There is a starter Rmd file (called Assignment4.Rmd) available for you to use to start your code.
Submission Due: Friday March 19th at 11:59pm ET
Your submission will consist of three components:
1. .Rmd file (submitted as a Group)
2. .pdf file (submitted as a Group)
3. Completion of Assignment 4 - Group Work Survey (completed as an individual)
Group Submission4
Part 2
Description:
In this question you will write a report on a data analysis in which your main methodology will be to derive
at least two confidence intervals. One confidence interval should be for a mean and should be calculated via
critical values (i.e., NOT via bootstrapping). The other confidence interval should be for another measure,
that is not the mean, median, or a proportion (e.g., a percentile, ratio, variance, standard deviation, etc.) to
be calculated via bootstrapping. Both confidence intervals should be meaningful/appropriate based on the
data. The report will consist of 5 sections: Introduction, Data, Methods, Results, and Conclusions.
There should be no evidence that Part 2 is an assignment, I should be able to take a screenshot
of this section and paste it into a newspaper/blog. There should be no raw code. All output,
tables, figures, etc. should be nicely formatted.
This will allow you to look at some interesting aspects of the data. Please find some data through: