Is there a relationship between treatment and smoking cessation? A study randomly selects a group of 1,025 smokers who are attempting to quit. One group of 352 is using Chantix, one group of 329 is using Bupropion, and one group of 344 is using a placebo. The success of the treatment is measured on whether or not participants smoked in weeks 9-12 of the treatment (this is a yes or no variable). Treatment Chantix Bupropion Placebo No smoking in weeks 9-12 155 97 61 Smoked in weks 9-12 197 232 283 Total 352 329 344 Treatment Chantix Bupropion Placebo No smoking in weeks 9-12 Smoked in weeks 9-12 Total 100% 100% 100% a. Complete the table above by filling in the percentages for each of the three treatments (remember that columns will add to 100%) Write an interpretation statement comparing across the percentages across the row and a summary statement describing the relationship between treatment and smoking cessation. b.
Is there a relationship between treatment and smoking cessation? A study randomly selects a group of 1,025 smokers who are attempting to quit. One group of 352 is using Chantix, one group of 329 is using Bupropion, and one group of 344 is using a placebo. The success of the treatment is measured on whether or not participants smoked in weeks 9-12 of the treatment (this is a yes or no variable). Treatment Chantix Bupropion Placebo No smoking in weeks 9-12 155 97 61 Smoked in weks 9-12 197 232 283 Total 352 329 344 Treatment Chantix Bupropion Placebo No smoking in weeks 9-12 Smoked in weeks 9-12 Total 100% 100% 100% a. Complete the table above by filling in the percentages for each of the three treatments (remember that columns will add to 100%) Write an interpretation statement comparing across the percentages across the row and a summary statement describing the relationship between treatment and smoking cessation. b.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:TABLE D CHI-SQUARE DISTRIBUTION CRITICAL VALUES
df
.25
.20
.15
.10
.05
.025
.02
.01
.005
.0025
.001
.0005
6.63
9.14
11.98
10.83
13.82
1.32
2.07
2.71
12.12
3.84
5.99
5.02
5.41
7.82
9.84
7.88
10.60
1.64
2.77
3.22
3.79
4.61
9.21
15.20
7.38
9.35
4.64
5.99
6.25
7.78
7.81
9.49
11.07
12.84
14.86
16.75
17.73
20.00
11.34
14.32
16.27
18.47
4.11
5.32
5.39
11.67
13.39
6.74
11.14
12.83
13.28
16.42
5
6.63
7.29
8.12
9.24
15.09
18.39
20.51
22.11
8.56
9.80
24.10
26.02
6.
7.84
9.04
10.22
11.39
9.45
10.64
12.59
14.45
15.03
16.81
18.55
20.25
22.04
22.46
14.07
15.51
24.32
26.12
16.01
16.62
18.48
20.09
7
10.75
12.02
20.28
17.53
27.87
29.67
31.42
8.
11.03
12.03
13.36
18.17
21.95
23.77
14.68
15.99
19.68
25.46
27.11
12.24
13.29
19.02
21.67
23.59
27.88
29.59
16.92
10
12.55
13.44
14.53
18.31
20.48
21.16
23.21
25.19
14.63
15.81
17.28
18.55
31.26
32.91
19.68
21.92
22.62
24.72
26.76
28.30
11
13.70
15.77
28.73
33.14
21.03
22.36
26.22
27.69
34.82
36.48
12
14.85
16.99
23.34
24.05
30.32
15.98
17.12
18.20
19.41
24.74
26.12
27.49
25.47
26.87
13
29.82
31.88
34.53
16.98
18.15
19.81
36.12
37.70
23.68
31.32
32.80
21.06
29.14
30.58
33.43
34.95
14
38.11
15
18.25
19.31
20.60
22.31
25.00
28.26
39.72
36.46
37.95
39.42
40.88
42 34
21.79
22.98
23.54
19.37
20.49
28.85
30.19
34.27
35.72
37.16
16
20.47
26.30
29.63
32.00
39.25
41.31
40.79
42.31
42.88
44.43
21.61
24.77
25.99
27.59
28.87
17
31.00
33.41
22.76
23.90
24.16
25.33
26 50
34.81
36.19
37 57
18
21.60
31.53
32.35
27.20
28 41
19
22.72
33.69
30.14
31 41
32.85
34 17
43.82
45 31
45.97
47 50
38.58
20
23.83
25.04
35.02
40 00
123 4
Transcribed Image Text:Is there a relationship between treatment and smoking cessation? A study randomly selects a group of
1,025 smokers who are attempting to quit. One group of 352 is using Chantix, one group of 329 is using
Bupropion, and one group of 344 is using a placebo. The success of the treatment is measured on whether
or not participants smoked in weeks 9-12 of the treatment (this is a yes or no variable).
Treatment
Chantix
Bupropion
Placebo
No smoking in weeks 9-12
155
97
61
Smoked in weeks 9-12
197
232
283
Total
352
329
344
Treatment
Chantix
Bupropion
Placebo
No smoking in weeks 9-12
Smoked in weeks 9-12
Total
100%
100%
100%
Complete the table above by filling in the percentages for each of the three treatments (remember
that columns will add to 100%)
a.
Write an interpretation statement comparing across the percentages across the row and a summary
statement describing the relationship between treatment and smoking cessation.
b.
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