MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Cicadas are flying, plant-eating insects. One species, the 13-year cicadas (Magicicada), spends five juvenile stages in underground burrows. During the 13 years underground, the cicadas grow from approximately the size of a small ant to nearly the size of an adult cicada. The adult body weights (BW) in grams and wing lengths (WL) in millimeters are given for three different species of these 13-year cicadas in the following table. It is of interest to determine if body weight is a significant predictor of wing length for a 13-year cicada. Considering all assumptions for a parametric test are satisfied, use the obtained jamovi © outputs below to answer the following: Is there a linear relationship between body weight and wing length of 13-year cicadas at 5% level of significance?
jamovi outputs:
1
Model
Model Fit Measures
BW
Correlation Matrix
Residuals
BW
WL
Omnibus ANOVA Test
Intercept
BW
R
0.649
Model Coefficients - WL
Predictor Estimate
Pearson's r
p-value
Pearson's r
p-value
23.0
28.1
R²
Sum of Squares
76.3
105.0
Note. Type 3 sum of squares
0.421
SE
1.42
7.03
df
1
22
t
BW
0.649
<.001
16.18
4.00
WL
Mean Square
76.30
4.77
р
<.001
<.001
F
16.0
р
<.001
[3]
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Transcribed Image Text:jamovi outputs: 1 Model Model Fit Measures BW Correlation Matrix Residuals BW WL Omnibus ANOVA Test Intercept BW R 0.649 Model Coefficients - WL Predictor Estimate Pearson's r p-value Pearson's r p-value 23.0 28.1 R² Sum of Squares 76.3 105.0 Note. Type 3 sum of squares 0.421 SE 1.42 7.03 df 1 22 t BW 0.649 <.001 16.18 4.00 WL Mean Square 76.30 4.77 р <.001 <.001 F 16.0 р <.001 [3]
Species
tredecula
tredecim
tredecim
tredecula
tredecim
tredecim
tredecassini
tredecassini
tredecassini
tredecassini
tredecassini
tredecim
BW
0.15
0.29
0.17
0.18
0.39
0.26
0.17
0.16
0.14
0.14
0.28
0.12
WL
28
32
27
30
35
31
29
28
25
28
25
28
Species
tredecula
tredecassini
tredecula
tredecula
tredecassini
tredecassini
tredecassini
tredecim
tredecula
tredecula
tredecassini
tredecula
BW
0.18
0.21
0.15
0.17
0.13
0.17
0.23
0.12
0.26
0.19
0.2
0.14
WL
29
27
30
27
27
29
30
22
30
30
30
23
expand button
Transcribed Image Text:Species tredecula tredecim tredecim tredecula tredecim tredecim tredecassini tredecassini tredecassini tredecassini tredecassini tredecim BW 0.15 0.29 0.17 0.18 0.39 0.26 0.17 0.16 0.14 0.14 0.28 0.12 WL 28 32 27 30 35 31 29 28 25 28 25 28 Species tredecula tredecassini tredecula tredecula tredecassini tredecassini tredecassini tredecim tredecula tredecula tredecassini tredecula BW 0.18 0.21 0.15 0.17 0.13 0.17 0.23 0.12 0.26 0.19 0.2 0.14 WL 29 27 30 27 27 29 30 22 30 30 30 23
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