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# AP Statistics

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## Jenni Holso

on 28 May 2013

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#### Transcript of AP Statistics

A A A A Motts vs. Generic
Apple Juice
Jenni Holso
Erika Jensen The proportion of Appleton who correctly identified Motts Hypothesis Ho: p = 0.5
Ha: p > 0.5 When given a sample of Motts apple juice and generic apple juice can at least 50% of the population of Appleton correctly identify the Motts brand name? Visual Graphs Conclusion Inference Data Collection The Question The Design B Appleton North The Ballard Plaza Eliminating Bias Downtown
Appleton A B Supplies \$4.48 \$2.48 1) A
2) A
3) B
4) A
5) A Randomization A A A A B 180 people 4th Person 16th Person 15
samples A or B 28th Person 1st Sample A or B A or B 2nd Sample 3rd Sample 90 people 2nd Person 8th Person 15
samples A or B 14th Person 1st Sample A or B A or B 2nd Sample 3rd Sample 52 people 2nd Person 4th Person 25
samples A or B 6th Person 1st Sample A or B A or B 2nd Sample 3rd Sample Random number generator
Multiple locations
Double blind Downtown Motts Guess
1. A A
2. A B
3. B A 9. B B
10. A A
11. A A
12. B A
13. B A
14. B B
15. B B 9 out of 15 correct Motts Guess
4. A A
5. A B
6. B A
7. B B
8. B B Ballard Plaza Motts Guess
1. B A
2. A A
3. A B Motts Guess
4. B A
5. B B
6. B A Motts Guess
7. B B
8. B A
9. A A
10. A A
11. A A
12. A A
13. A A
14. B A
15. A A 9 out of 15
correct Motts Guess
1. A A
2. B B
3. A A Study Halls 4. B B
5. A A
6. B B
7. A A
8. A A
9. B A
10. B B
11. B B
12. B A
13. B B
14. B B
15. B B 13 out of 15
correct Privilege Motts Guess
1. B B
2. B A
3. A A
4. B B
5. B A
6. B A
7. A B
8. A A
9. A A
10. A A 6 out of 10
correct Overall 37 out of 55 correct z=2.56 p= 0.005 Binomial Distribution x P(X=x) Parameter One-proportion
Z-test 0.67 0.5 0.5 0.5 55 In conclusion
we reject
the null hypothesis Assumptions SRS?
Population>10n?
10 successes?
10 failures?
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