Present Remotely

Send the link below via email or IM

• Invited audience members will follow you as you navigate and present
• People invited to a presentation do not need a Prezi account
• This link expires 10 minutes after you close the presentation

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

AP Statistics Final Project

When asked to pick a number between one and ten, do people pick random numbers or do they tend to choose certain numbers over others?
by

Jacob Crockett

on 6 June 2011

Report abuse

Transcript of AP Statistics Final Project

AP Statistics Final Project When asked to select a number one through ten, do people randomly select a number or do they tend to select certain numbers over others? PRELIMINARY STUDY Facebook Question Randomized Data Collection- Survey of Students at Osseo Senior High School Simple Random Sample of Students at Osseo Senior High
Sample size 100
Questioned in person or collected data through questionaire (Number) (Frequency) 1 3
2 6
3 13
4 14
5 11
6 9
7 31
8 6
9 4
10 3 Test Conditions
Random Sampling of Students
Expecteds exceed 5
Model to test
Each response only one category Test- Null Hypothesis
The true proportion for chosen numbers, one through ten, by students at Osseo High School is equal to 1/10th for each number. In other words, these students choose randomly when asked to pick a number 1-10. Test- Alternative Hypothesis
The true proportion for chosen numbers, one through ten, by students at Osseo High School is not equal to 1/10th for each number. In other words, these students tend to favor certain numbers over others when asked to pick a number 1-10. Test- Chi-Square Goodness of Fit Test Statistic Conclusion χ2 = 63.4 with 9 degrees of freedom p-value = .000000000295 = 2.95x10^-10 Test was statistically significant (p < alpha = .05)
Null hypothesis is false: students do not choose numbers equally or randomly
Random number generating vs. arbitrary human generation Level of significance = .05 Why seven?
Further testing
Full transcript