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AP Statistics Final Project
Transcript of AP Statistics Final Project
Sample size 100
Collected data during Guided Study/Advisory
Questioned in person or collected data through questionaire (Number) (Frequency) 1 3
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?