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you are interested in the relationship between Reading and Writing scores. (a)  Provide the scatterplot for the association between Reading and Writing scores. Based on the scatterplot, do you expect Reading to be

you are interested in the relationship between Reading and Writing scores. (a)  Provide the scatterplot for the association between Reading and Writing scores. Based on the scatterplot, do you expect Reading to be

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 12PPS
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  1. Suppose that you are interested in the relationship between Reading and Writing scores.

(a)  Provide the scatterplot for the association between Reading and Writing scores. Based on the scatterplot, do you expect Reading to be correlated with Writing? If so, based only on the plot, would you expect the correlation to be positive or negative? Explain your answer.

(b)  Report the value of the correlation between Reading and Writing scores, and whether it is statistically significant. Do these results agree with your expectations from part (a)?

RDG WRTG
34 44
47 36
42 59
39 41
36 49
50 46
63 65
44 52
47 41
44 50
50 62
44 41
47 40
42 59
42 41
47 41
60 65
39 49
57 54
73 65
47 46
39 44
35 39
39 41
48 49
31 41
52 63
47 54
36 44
47 44
34 46
52 57
42 40
37 44
44 33
71 58
47 46
42 33
42 36
47 41
52 54
52 54
39 39
31 41
60 54
47 31
39 28
42 36
47 57
42 49
36 41
50 33
34 34
55 55
28 46
42 42
44 44
60 52
39 57
36 37
44 44
39 42
39 34
42 39
42 44
52 54
65 65
42 26
47 62
52 62
44 54
52 54
47 44
65 57
63 65
60 59
47 44
65 57
53 61
68 63
55 56
39 53
52 52
65 67
52 44
57 67
63 67
41 59
57 44
36 31
55 59
50 57
63 62
50 67
51 57
47 46
57 65
73 65
52 54
73 61
44 49
57 57
60 54
65 59
57 54
44 49
39 28
55 39
41 47
39 41
63 52
45 57
53 46
31 36
66 67
50 49
44 41
42 41
56 59
38 37
50 40
40 40
71 67
46 52
43 46
68 59
47 37
54 44
39 28
47 62
59 57
63 62
34 35
39 42
39 52
45 55
55 37
36 31
47 46
39 36
36 39
57 55
52 53
42 39
50 40
36 39
45 33
50 59
55 47
60 67
42 36
36 46
52 57
50 46
39 36
55 57
34 37
36 45
36 44
47 54
55 48
50 45
52 49
63 65
47 31
55 45
55 54
47 54
71 65
55 46
57 57
55 41
44 54
68 62
65 67
55 49
71 63
57 65
71 67
34 54
76 63
71 56
59 54
65 65
52 44
63 62
52 65
42 54
63 65
50 52
55 57
52 57
55 54
42 46
60 52
68 62
50 57
55 59
37 37
52 65
39 57
73 67
58 49
55 52
44 44
44 52
55 50
57 52
42 44
55 59
57 62
57 52
34 59
42 54
52 39
65 67
50 52
57 67
50 57
57 50
44 44
47 54
60 46
44 57
61 57
47 52
52 54
55 67
61 59
42 47
63 52
39 54
63 62
57 65
60 62
73 62
52 59
65 62
34 46
63 54
63 43
68 62
55 50
68 62
62 57
43 51
50 62
65 59
63 54
63 57
60 52
50 54
55 39
52 62
44 47
44 33
39 39
50 57
50 52
52 57
55 59
68 60
55 65
42 41
35 35
44 41
57 57
42 54
44 33
65 65
50 49
52 57
45 39
52 67
55 65
44 39
73 67
52 46
50 53
55 49
44 49
53 48
73 60
65 49
61 61
65 54
55 57
50 49
60 54
65 67
65 57
57 60
60 59
57 44
47 59
39 46
66 65
63 65
60 57
73 65
60 62
60 59
55 65
52 41
50 54
34 41
76 52
47 33
34 52
54 63
47 53
52 57
50 41
50 36
57 59
36 44
60 65
39 46
47 39
60 42
44 39
34 33
34 39
68 57
42 39
46 42
68 65
52 55
52 44
44 31
39 54
44 33
34 44
52 59
63 62
42 39
44 52
50 57
71 57
68 65
68 62
36 62
42 49
39 32
52 41
57 59
63 67
65 52
34 49
47 36
52 59
55 62
39 41
55 59
42 57
60 65
66 65
63 52
50 57
60 65
68 59
55 65
39 42
52 59
39 41
66 67
68 59
39 36
39 59
42 54
44 41
52 62
68 65
50 62
36 44
42 31
57 57
68 54
63 59
50 52
61 67
39 33
47 57
44 39
44 44
47 65
52 59
43 54
45 43
60 62
65 59
46 35
44 41
73 62
47 57
39 39
50 31
47 50
46 54
44 44
44 54
63 59
63 60
63 44
60 53
65 59
43 48
52 60
63 65
63 57
63 63
43 57
60 52
55 67
68 59
44 49
65 59
44 41
55 52
45 54
63 44
63 65
68 65
47 42
47 52
55 57
63 63
36 59
60 49
60 65
55 54
44 54
42 46
65 62
55 61
55 62
50 41
36 28
47 62
52 49
68 49
42 57
42 47
65 52
63 49
60 62
41 39
42 41
63 49
68 59
47 46
42 46
44 59
55 57
52 52
52 57
39 31
50 49
42 43
65 65
71 44
52 46
44 44
60 67
42 41
50 59
39 54
44 59
68 59
57 65
50 54
52 54
60 59
44 49
55 61
52 62
57 57
55 65
60 65
44 54
57 62
39 49
63 56
57 52
63 65
55 59
52 57
55 46
55 62
31 36
55 62
71 65
36 49
37 59
65 65
52 59
63 59
63 59
63 49
66 63
65 67
52 54
73 61
63 62
55 59
76 67
52 36
47 62
52 39
34 28
60 54
39 39
50 44
47 52
63 62
65 59
50 62
55 41
57 62
68 59
52 46
52 62
36 57
50 62
63 65
47 47
63 62
60 62
55 59
60 59
50 52
47 57
44 59
50 57
47 65
57 54
52 46
71 65
57 62
55 49
50 46
47 52
65 62
44 52
47 65
60 65
63 59
34 43
42 65
50 52
65 65
55 62
63 57
44 49
65 65
57 62
60 59
44 54
57 41
45 48
44 49
63 62
57 59
57 54
47 59
65 65
42 59
47 59
56 50
44 65
47 52
50 52
47 62
65 67
44 36
63 65
44 49
47 52
45 39
63 63
53 41
50 59
57 57
57 54
55 62
44 38
48 48
52 52
50 42
47 57
55 53
47 61
44 41
44 52
52 59
60 54
63 62
68 54
57 67
63 54
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