Project
part 1

For
these project assignments throughout the course you will need to
reference the data in the ROI Excel spreadsheet. Download
it here.

In
this data set ? the ROI data set – for 2 different majors (Business
and Engineering), you are given a sample of the 20 best colleges
according to ROI (ROI = Return on Investment) and their ?School
Type?, ?Cost?, ?30-Year ROI?, and ?Annual % ROI?.

1. The
   Week 8 project is completed in part every week. If you do each
   week’s project, your Week 8 project will go a lot better than if you
   do not. Open the spreadsheet. Explain what ROI is.
2. From
   the spreadsheet, define what each column is telling you. Go beyond
   giving the name of the column. For example, what is a 30-year
   ROI?
3. For
   each of the 2 majors create a pie chart using the column ?School
   Type?. Make sure that the title clearly explains what you
   are looking at.
4. For
   each of the 2 majors create a frequency distribution and histogram
   using the column ?Annual % ROI?. Group with starting at 6%
   (0.06), ending at 11% (0.11), and go by 0.5% (0.005). Make
   sure that there are NO overlapping bars. For example, if one
   bar is 0.060-0.064, then the next bar can’t start with 0.064.
   It would have to start with0.065.
5. In
   a highlighted box, interpret your results. Do the samples
   represent public and private schools equally? What does this
   mean in terms of the population of schools? Is there a certain
   histogram bar that is higher than all the others? What does
   this mean in terms of ROI? These are not the only questions
   you can use to interpret the results, but they are a push in the
   right direction. Keep going. What else do you see?

Project
part 2

For
these project assignments throughout the course you will need to
reference the data in the ROI Excel spreadheet. Download
it here.

Using
the ROI data set:

1. For each of
   the 2 majors calculate the mean, median, minimum, maximum, range,
   and standard deviation for the columns ?Cost? and ?30-Year
   ROI?.
2. Define each
   of the terms in #1, and explain how each can be used to provide
   information about a data set.
3. By hand or
   with Excel, for each of the 2 majors calculate the probability that
   a college picked from the column for ?School Type? is ?Private?.
4. By hand or
   with Excel, for each of the 2 majors find the probability that a
   college with the ?School Type? ?Private? has a ?30-Year
   ROI? between $1,500,000 and $1,800,000.
5. This is
   your highlighted box for your project: Use the definitions and
   explanations in #2 to analyze the data. What have you learned
   about the data set of each major? What does it mean if there
   is a greater range in terms of ROI? What does it mean if there
   is a greater standard deviation in terms of ROI? How do minimum and
   maximum factor into the question? Which major is looking like it has
   the better ROI right now? Why?