Statistics Term Project

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Statistics Term
Project
Cody Olsen
The study

Purpose of the Study: To see if there is any correlation between the
number of formal dances attended during grades 9-12 and the
number of different people kissed during that same time frame.

Study Design: Due to limited time and resources for this project I
decided to perform a simple random sample with the employee
roster in my office. The individuals in my office range from ages 20
to 60 and they originate from many different states in the U.S. I
assigned a 2 digit number to each of our 80 employees and by
using a random number generator in excel I randomly chose 40 of
them. I then handed each chosen person a survey with 2 simple
questions: Within the grades 9-12, how many different people did
you kiss? Within grades 9-12, how many formal dances did you
attend? These were anonymously filled out and then returned to
me. I got exactly 30 surveys back.
Testing Correlation


Analysis: Both of my variables had right
skewed distributions. The “People kissed”
Variable was more skewed having a mean of
14.5 and an outlier of 75. “Dances attended”
was also right skewed but did not have any
outliers. The critical value for a correlation
coefficient of a sample size of 30 is 0.361. The
correlation coefficient from my sample is
- 0.256. The data from my sample does not
show significant statistical correlation.
Interpretation and Conclusions: The
information gathered has too weak of a
relationship to make any strong predictions
when it comes to the two response variables.
The information did turn out somewhat how I
did predict in that the very high number and
low numbers of “people kissed” both shared
low number of “dances attended” for the
most part. A simple color scale in excel
allowed me to see that. But I do believe that
any prediction made using one response
variable to predict the other would not carry
much confidence.
People kissed
Dances attended
75
2
50
5
50
2
40
3
35
6
26
0
25
3
25
7
19
4
13
14
13
2
9
0
8
9
6
2
6
12
5
14
4
10
4
0
4
12
4
12
3
3
3
5
2
3
2
13
2
9
1
1
1
5
0
7
0
2
0
1
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