A225 Intro to Statistics
Overview: The purpose of this project is to gather, organize, and analyze data. To that end, you will collect data
from an outside and reliable source from a field in which you are interested, the field related to your major, or
data gathered from a survey. You may not send out a blanket email to dc.edu mailing addresses; you must
gather data a different way. Be sure to find NUMERICAL DATA! For example, collect Eli Manning’s passing
yards per game in his career. The data collected should be approximately 100 data items (must be at least 75) to
create a statistical analysis. You must submit your topic of choice for approval, and no more than two students
may have the same topic.
Topics must be submitted on Blackboard under “Project.” Emailed submissions will not be considered. Your
topic is not good unless it is approved by me. If you do not have an approved topic by the beginning of class on
the due date, you will be given a topic on a random basis.
TOPIC MUST BE SUBMITTED BY: _TUES., MARCH 30TH___ (5% of project grade)
Procedure: After gathering your data, the following must be prepared:
Before organizing any data, divide your data into !
ratio. (Unless your data naturally falls into a sample and population)
• Your !
” will be considered your “population.”
• The remaining #
” will be your “sample.”
These will be used for comparison of data.
Population Data ( !
” of your data – at least 67 (50) data items):
1. Create a frequency distribution table (including: class limits, class boundaries, class midpoints, frequency, cumulative
frequency, relative frequency, cumulative relative frequency)
2. Create one pictorial view of the data (ie. histogram, bar graph, pie chart, etc.) Be sure to include all necessary
3. Find the following measurements: Mean, Median, Mode, Midrange, Mode, IQR, Variance, and Standard Deviation
using the classes in your distribution)
4. Write a brief explanation of the data gathered. (no less than one page and no more than 2 pages)
• Why did you choose the topic? Where did you get the data? Etc..
• Explain why you think the measures of central tendency are different and/or the same. Explain
these differences/similarities mathematically – a brief statistical analysis. This does not mean
describe how to do the calculations, but rather explain the differences/similarities in the measures
of “middle” and how or why this occurred specifically with your data. Knowledge of your data
will make each person’s results unique. Do not just say the numerical differences between the
measures of the middle – give reasons.
Sample Data (
of your data – at least 63 (25) data items):
1. Find the mean and standard deviation.
2. Compare the mean of this “sample” ( ) to the mean of the “population” (µ) and determine if the
“sample” differs from the “population” mean using a t/z test.
3. Find the p-value.
4. Explain the differences, if any. Do not just state the differences, but be sure to explain why. (This is
unique to each person’s data.) (no more than one page)
Presentation/Paper: You may choose to present your work or write a paper.
Presentation: Must be of college-level and well-constructed. Spelling and grammar count!
• Should be approximately 4 – 7 minutes in length.
• Must be neatly prepared using PowerPoint, Prezi, or posterboard.
• A copy of your data, calculations, and a copy of your slides must be uploaded to OneDrive and shared
with me by the beginning of the date due in class. No paper is necessary.
• You must be prepared to answer questions about your topic.
Paper: Must be of college-level and well-constructed. Spelling and grammar count!
• Should be approximately 7 – 8 pages in length.
• Papers will be turned in electronically and as a SINGLE document using Turnitin in Blackboard Under
“Project.” – No hard copy papers will be accepted.
• Papers must be submitted by the beginning of the date due in class. No presentation is necessary.
Whether or not you choose to write a paper or do a presentation, you must prepare the project so that the
presentation is completely understandable to an average reader. That is, focus on what you see presented in
newspapers/magazines for reading. The reader would not normally have access to the actual data, but rather to
the summary and pictorial views as well as the brief text explaining your study. Practice on a friend or family
member that has no knowledge of your topic or your data.
PRESENTATION/ PAPER DUE: ___TUES., APRIL 27TH______
Grading: This project is worth 25% of your final grade.
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