2. I'm very interested in the relationship between statistics anxiety and performance in statistics. Let's assume l'm teaching a class and just before the final exam, I administer a survey of statistics anxiety, which I attach to their exam (not particularly anonymous or confidential). Their data are in the table below. 1. What kind of correlation would you expect to see between these two variables and why? 2. Enter the data into SPSS 3. What is the correlation coefficient (r) between stats anxiety and performance on the exam? How do you interpret this? 4. What is R2 , what additional information does this give us? 5. a. Use SPSS to find the regression equation. b. What score on the exam could we predict someone would receive if they scored a 38 on the anxiety questionnaire? Studen Anxiet Fina y 1 28 41 2 41 58 3 35 63 4 39 89 5 31 92 6 42 64 7 50 55 8 46 70 9 45 51 10 37 72

MATLAB: An Introduction with Applications
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Questions 1, 2, & 3

2. I'm very interested in the relationship between statistics anxiety and performance in
statistics. Let's assume l'm teaching a class and just before the final exam, I administer a
survey of statistics anxiety, which I attach to their exam (not particularly anonymous or
confidential). Their data are in the table below.
1. What kind of correlation would you expect to see between these two variables and
why?
2. Enter the data into SPSS
3. What is the correlation coefficient (r) between stats anxiety and performance on
the exam? How do you interpret this?
4. What is R2 , what additional information does this give us?
5. a. Use SPSS to find the regression equation. b. What score on the exam could we
predict someone would receive if they scored a 38 on the anxiety questionnaire?
Studen
Anxiet
Fina
y
1
28
41
2
41
58
3
35
63
4
39
89
5
31
92
6
42
64
7
50
55
8.
46
70
9.
45
51
37
72
10
Transcribed Image Text:2. I'm very interested in the relationship between statistics anxiety and performance in statistics. Let's assume l'm teaching a class and just before the final exam, I administer a survey of statistics anxiety, which I attach to their exam (not particularly anonymous or confidential). Their data are in the table below. 1. What kind of correlation would you expect to see between these two variables and why? 2. Enter the data into SPSS 3. What is the correlation coefficient (r) between stats anxiety and performance on the exam? How do you interpret this? 4. What is R2 , what additional information does this give us? 5. a. Use SPSS to find the regression equation. b. What score on the exam could we predict someone would receive if they scored a 38 on the anxiety questionnaire? Studen Anxiet Fina y 1 28 41 2 41 58 3 35 63 4 39 89 5 31 92 6 42 64 7 50 55 8. 46 70 9. 45 51 37 72 10
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