Which age groups are being compared for contrast 1? 30 to 39 year olds and 40 to 49 year olds 40 to 49 year olds and 50 to 59 year olds O 18 to 29 year olds and 30 to 39 year olds O 18 to 29 year olds and 40 to 49 year olds

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Which age groups are being compared for contrast 1?
30 to 39 year olds and 40 to 49 year olds
40 to 49 year olds and 50 to 59 year olds
O 18 to 29 year olds and 30 to 39 year olds
18 to 29 year olds and 40 to 49 year olds
Transcribed Image Text:Which age groups are being compared for contrast 1? 30 to 39 year olds and 40 to 49 year olds 40 to 49 year olds and 50 to 59 year olds O 18 to 29 year olds and 30 to 39 year olds 18 to 29 year olds and 40 to 49 year olds
Descriptives
Anxiety Score
95% Confidence Interval for
Mean
N
Mean
Std. Deviation
Std. Error
Lower Bound
Upper Bound
Minimum
Maximum
18 to 29
20
10.8905
2.11376
.47265
9.9012
11.8798
7.84
15.14
30 to 39
20
10.7170
2.49308
.55747
9.5502
11.8838
6.30
17.52
40 to 49
20
9.9370
3.05279
.68263
8.5082
11.3658
4.82
14.84
50 to 59
20
10.1395
2.19211
.49017
9.1136
11.1654
5.32
13.73
Total
80
10.4210
2.47465
.27667
9.8703
10.9717
4.82
17.52
ANOVA
Anxiety Score
Sum of
Squares
df
Mean Square
F
Sig.
Between Groups
12.431
3
4.144
.668
.574
Within Groups
471.358
76
6.202
Total
483.789
79
Contrast Coefficients
AgeGroup
Contrast
18 to 29
30 to 39
40 to 49
50 to 59
1
1
-1
1
-1
Contrast Tests
Value of
Contrast
Contrast
Std. Error
t
df
Sig. (2-tailed)
Anxiety Score
Assume equal variances
1
.1735
.78753
.220
76
.826
2
-.2025
.78753
-.257
76
.798
Does not assume equal
1
.1735
.73087
.237
37.010
.814
variances
2
-.2025
.84038
-.241
34.478
.811
Transcribed Image Text:Descriptives Anxiety Score 95% Confidence Interval for Mean N Mean Std. Deviation Std. Error Lower Bound Upper Bound Minimum Maximum 18 to 29 20 10.8905 2.11376 .47265 9.9012 11.8798 7.84 15.14 30 to 39 20 10.7170 2.49308 .55747 9.5502 11.8838 6.30 17.52 40 to 49 20 9.9370 3.05279 .68263 8.5082 11.3658 4.82 14.84 50 to 59 20 10.1395 2.19211 .49017 9.1136 11.1654 5.32 13.73 Total 80 10.4210 2.47465 .27667 9.8703 10.9717 4.82 17.52 ANOVA Anxiety Score Sum of Squares df Mean Square F Sig. Between Groups 12.431 3 4.144 .668 .574 Within Groups 471.358 76 6.202 Total 483.789 79 Contrast Coefficients AgeGroup Contrast 18 to 29 30 to 39 40 to 49 50 to 59 1 1 -1 1 -1 Contrast Tests Value of Contrast Contrast Std. Error t df Sig. (2-tailed) Anxiety Score Assume equal variances 1 .1735 .78753 .220 76 .826 2 -.2025 .78753 -.257 76 .798 Does not assume equal 1 .1735 .73087 .237 37.010 .814 variances 2 -.2025 .84038 -.241 34.478 .811
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