1. Jeopardy Vocabulary Formulas Q $100 Q $100 Q $100 Q $100 Q $100 Q $200
Hypothesis
Testing
Confidence Intervals
Chi-Squared
Vocabulary
Formulas
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Final Jeopardy

2. $100 Question from H1 A B C D F Junior 4 7 3 1 Senior 12 13 16 8 5
What is the degree of freedom for the 2-way table below?
Grade in Statistics A B C D F
Junior 4 7 3 1
Senior 12 13 16 8 5

3. $100 Answer from H1 4

4. $200 Question from H1 A B C D F Junior 4 7 3 1 Senior 12 13 16 8 5
For the 2-way table above, compute the expected number of students that are seniors and that have a B in statistics.

5. $200 Answer from H1
15.43

6. State the HO and HA for this two way table
$300 Question from H1
State the HO and HA for this two way table
Grade in Statistics A B C D F
Junior 4 7 3 1
Senior 12 13 16 8 5

7. $300 Answer from H1
Ho: There is no connection between grades and year in school
Ha: There is a connection between grades and year in school

8. Compute the Chi Squared statistic for this 2-way table.
$400 Question from H1
Compute the Chi Squared statistic for this 2-way table.
Grade in Statistics A B C D F
Junior 4 7 3 1
Senior 12 13 16 8 5

9. $400 Answer from H1
3.087

10. $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.

11. $100 Answer from H2
$0.081

12. $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.

13. $200 Answer from H2
$0.159

14. $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.

15. $300 Answer from H2
($5.09, $5.41)

16. $400 Question from H2
What is the margin of error for the confidence interval below?
(72.61,79.39)

17. $400 Answer from H2
$3.39

18. $100 Question from H3 Write the Ho and Ha 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.

19. $100 Answer from H3
H0: μ = 300
Ha: μ < 300

20. $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.

21. $200 Answer from H3
3.58

22. $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.

23. $300 Answer from H3 P-value = .0105. Reject Ho in favor of Ha.
The sample does not provide good evidence
that the golfer can hit the ball an average of 300 yards.

24. $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.)

25. $400 Answer from H3
294 yards

26. $100 Question from H4
Define the phrase: Margin of error

27. $100 Answer from H4
Distance from the mean to one end of a confidence interval

28. $200 Question from H4
Explain Simpson’s Paradox

29. $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

30. $300 Question from H4
Define the phrase: Null Hypothesis

31. $300 Answer from H4
Statement of no effect or no change

32. $400 Question from H4 What kind of variables are being
compared in a two-way table?

33. $400 Answer from H4
Categorical variables

34. $100 Question from H5 Margin of error for a sample mean
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

35. $100 Answer from H5

36. $200 Question from H5
Expected counts in a two-way table

37. $200 Answer from H5

38. $300 Question from H5
Z-score formula for a hypothesis test of a sample mean

39. $300 Answer from H5

40. $400 Question from H5
Confidence interval for a sample mean

41. $400 Answer from H5

42. Final Jeopardy
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43. Final Jeopardy Answer
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