minitab: Body measurements of female sparrows: X1=total length, X2=alar length,
ID: 3158312 • Letter: M
Question
minitab:
Body measurements of female sparrows:
X1=total length, X2=alar length, X3=length of beak and head, X4=length of humerus, X5=length of keel and sternum; all in mm).
Birds 1 to 21 survived a severe storm near Brown University
in Rhode Island while the remainder died.
ID X1 X2 X3 X4 X5
01 156 245 31.6 18.5 20.5
02 154 240 30.4 17.9 19.6
03 153 240 31.0 18.4 20.6
04 153 236 30.9 17.7 20.2
05 155 243 31.5 18.6 20.3
06 163 247 32.0 19.0 20.9
07 157 238 30.9 18.4 20.2
08 155 239 32.8 18.6 21.2
09 164 248 32.7 19.1 21.1
10 158 238 31.0 18.8 22.0
11 158 240 31.3 18.6 22.0
12 160 244 31.1 18.6 20.5
13 161 246 32.3 19.3 21.8
14 157 245 32.0 19.1 20.0
15 157 235 31.5 18.1 19.8
16 156 237 30.9 18.0 20.3
17 158 244 31.4 18.5 21.6
18 153 238 30.5 18.2 20.9
19 155 236 30.3 18.5 20.1
20 163 246 32.5 18.6 21.9
21 159 236 31.5 18.0 21.5
22 155 240 31.4 18.0 20.7
23 156 240 31.5 18.2 20.6
24 160 242 32.6 18.8 21.7
25 152 232 30.3 17.2 19.8
26 160 250 31.7 18.8 22.5
27 155 237 31.0 18.5 20.0
28 157 245 32.2 19.5 21.4
29 165 245 33.1 19.8 22.7
30 153 231 30.1 17.3 19.8
31 162 239 30.3 18.0 23.1
32 162 243 31.6 18.8 21.3
33 159 245 31.8 18.5 21.7
34 159 247 30.9 18.1 19.0
35 155 243 30.9 18.5 21.3
36 162 252 31.9 19.1 22.2
37 152 230 30.4 17.3 18.6
38 159 242 30.8 18.2 20.5
39 155 238 31.2 17.9 19.3
40 163 249 33.4 19.5 22.8
41 163 242 31.0 18.1 20.7
42 156 237 31.7 18.2 20.3
43 159 238 31.5 18.4 20.3
44 161 245 32.1 19.1 20.8
45 155 235 30.7 17.7 19.6
46 162 247 31.9 19.1 20.4
47 153 237 30.6 18.6 20.4
48 162 245 32.5 18.5 21.1
49 164 248 32.3 18.8 20.9
1. For the variable Total Length divide into 2 groups: Group A Survived, Group B Not Survived.
a. Provide dot-plots for Groups A & B.
b. Provide box-plots for Groups A and B.
c. Provide histograms for Groups A & B. Mark axes, cut-points, interval width.
d. Develop Normal probability plots for Groups A & B.
e. Based on the results of (a)-(d) , describe your findings:
Which group has the greatest variation? Why?
Which group has the greatest mean length? Why?
Which group displays normally distributed length?
Which group (survived or not survived) has the highest mean length?
Spreading of the presented data; existence of regular/extreme outliers; skewedness of the data; normality of histograms; variability of the data for each group and versa each other.
Explanation / Answer
Group B Not Survived has greatest variation because the values are more wider(From dot plot) as compair to Group A (Survived group)
Group A is normally distributed because the variation in group A is less than group B and also the normal curve of group A is smoother than group B.
Group B has highest mean length.
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