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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