Research Project Data Analysis
Names: Alice
Alverno and Sally Student
Project Title: Effect
of airline travel on cognitive ability
Hypothesis (must be a
statement):
Cognitive ability is
negatively correlated with hours of airline travel.
Independent variable(s):
Airline travel (hours)
Dependent variable(s):
Ability to solve
mathematical equations
Summary statistics (means
and standard deviations, etc.. Round to 3 or 4
significant digits):
Math Scores: Mean = 6.56 correct (out
of 10), Standard deviation = 1.42, Range 3 to 10
Hours of airline travel:
Mean = 2.78, Standard deviation = 2.77, Range 0 to 12
Statistical test used: Correlation (linear)
P-value or r2:
r2 = 0.49
Attach your data sheets,
with labels.
Attach your graph(s) of
your summary data. Remember to label
your axes and provide a descriptive legend if necessary. Include error bars (can be hand-drawn) or
regression line.
State in one or two
sentences how your analysis of data supports or refutes your hypothesis.
Our data supported our
hypothesis. There was a moderate negative
correlation between how long a subject had been flying on an airplane and how
well they did on the math test.
|
|
Hours of
Airline Travel |
Score on
Math Test |
|
|
1 |
8 |
|
|
9 |
5 |
|
|
6 |
6 |
|
|
2 |
7 |
|
|
3 |
6 |
|
|
12 |
3 |
|
|
2 |
5 |
|
|
2 |
6 |
|
|
4 |
7 |
|
|
7 |
5 |
|
|
8 |
6 |
|
|
1 |
7 |
|
|
1 |
8 |
|
|
7 |
5 |
|
|
2 |
6 |
|
|
2 |
6 |
|
|
2 |
7 |
|
|
4 |
5 |
|
|
2 |
6 |
|
|
2 |
7 |
|
|
3 |
5 |
|
|
1 |
7 |
|
|
2 |
8 |
|
|
1 |
7 |
|
|
2 |
6 |
|
|
1 |
8 |
|
|
3 |
6 |
|
|
2 |
8 |
|
|
1 |
9 |
|
|
2 |
6 |
|
|
3 |
5 |
|
|
0 |
7 |
|
|
0 |
6 |
|
|
0 |
8 |
|
|
0 |
9 |
|
|
0 |
10 |
|
Mean |
2.777777778 |
6.555555556 |
|
|
2.768301296 |
1.42316437 |
|
Correlation |
r-squared
= 0.4903 |
|
(n=25)