2. Jeopardy Chi-Squared Confidence Intervals Hypothesis Testing Vocabulary Formulas Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q $200 Q $300 Q $400 Q $500 Final Jeopardy

3. $100 Question from H1 What is the degree of freedom for the 2-way table below? Grade in Statistics ABCDF Junior47311 Senior12131685

4. $100 Answer from H1 4

5. $200 Question from H1 For the 2-way table above, compute the expected number of students that are seniors and that have a B in statistics. ABCDF Junior47311 Senior12131685

6. $200 Answer from H1 15.43

7. $300 Question from H1 State the H O and H A for this two way table Grade in Statistics ABCDF Junior47311 Senior12131685

8. $300 Answer from H1 H o : There is no connection between grades and year in school H a : There is a connection between grades and year in school

9. $400 Question from H1 Compute the Chi Squared statistic for this 2-way table. Grade in Statistics ABCDF Junior47311 Senior12131685

10. $400 Answer from H1 3.087

11. $100 Question from H2 Find the standard deviation for the following sampling distribution: 200 high school students at Dublin High were sampled and asked how much money they spent on lunch off campus. The mean of the sample was $5.25 and the standard deviation was $1.15.

12. $100 Answer from H2 $0.081

13. $200 Question from H2 Compute the margin of error (95% confidence level) for the $100 question. 200 high school students at Dublin High were sampled and asked how much money they spent on lunch off campus. The mean of the sample was $5.25 and the standard deviation was $1.15.

14. $200 Answer from H2 $0.159

15. $300 Question from H2 Compute a 95% confidence interval for the situation from the $100 question: 200 high school students at Dublin High were sampled and asked how much money they spent on lunch off campus. The mean of the sample was $5.25 and the standard deviation was $1.15.

16. $300 Answer from H2 ($5.09, $5.41)

17. $400 Question from H2 What is the margin of error for the confidence interval below? (72.61,79.39)

18. $400 Answer from H2 $3.39

19. $100 Question from H3 Write the H o and H a for the problem below: A professional golfer claims that, with her driver, she can hit the ball an average of 300 yards. You ask her to hit the ball in the driving range 20 times. The average distance is 291 yards with a standard deviation of 16 yards.

20. $100 Answer from H3 H 0 : μ = 300 H a : μ < 300

21. $200 Question from H3 Compute the standard deviation of the sampling distribution for the $100 question. A professional golfer claims that, with her driver, she can hit the ball an average of 300 yards. You ask her to hit the ball in the driving range 20 times. The average distance is 291 yards with a standard deviation of 16 yards.

22. $200 Answer from H3 3.58

23. $300 Question from H3 Make a conclusion about the golfer’s claim by running the appropriate hypothesis test A professional golfer claims that, with her driver, she can hit the ball an average of 300 yards. You ask her to hit the ball in the driving range 20 times. The average distance is 291 yards with a standard deviation of 16 yards.

24. $300 Answer from H3 P-value =.0105. Reject H o in favor of H a. The sample does not provide good evidence that the golfer can hit the ball an average of 300 yards.

25. $400 Question from H3 A professional golfer claims that, with her driver, she can hit the ball an average of 300 yards. You ask her to hit the ball in the driving range 20 times. The average distance is 291 yards with a standard deviation of 16 yards. Find the minimum distance of the average of 20 drives the golfer would need to hit in order for you to accept her claim if you require 5% significance. (assume the standard deviation is still 16.)

26. $400 Answer from H3 294 yards

27. $100 Question from H4 Define the phrase: Margin of error

28. $100 Answer from H4 Distance from the mean to one end of a confidence interval

29. $200 Question from H4 Explain Simpson’s Paradox

30. $200 Answer from H4 An association or comparison that holds for all of several groups can disappear or reverse direction when the data are combined to form a single group

31. $300 Question from H4 Define the phrase: Null Hypothesis

32. $300 Answer from H4 Statement of no effect or no change

33. $400 Question from H4 What kind of variables are being compared in a two-way table?

34. $400 Answer from H4 Categorical variables

35. $100 Question from H5 For each question in this category, the name of a formula used in Chapter 10 will appear. You need to write the formula. Margin of error for a sample mean

36. $100 Answer from H5

37. $200 Question from H5 Expected counts in a two-way table

38. $200 Answer from H5

39. $300 Question from H5 Z-score formula for a hypothesis test of a sample mean

40. $300 Answer from H5

41. $400 Question from H5 Confidence interval for a sample mean

42. $400 Answer from H5

43. Final Jeopardy Your Text Here

44. Final Jeopardy Answer Your Text Here