1. Problem Solving а. A study was conducted at Virginia Tech to determine if certain static arm- strength measures have an influence on the "dynamic lift" characteristics of an individual. Twenty-five individuals were subjected to strength tests and then were asked to perform a weight- lifting test in which weight was dynamically lifted overhead. The data are given here. Arm Dynamic Lift, y 71.7 Strength, a 17.3 19.3 19.5 19.7 Individual 2 3 4 48.3 88.3 75.0 22.9 23.1 26.4 26.8 27.6 28.1 28.2 28.7 29.0 91.7 100.0 6 7 8 73.3 65.0 75.0 88.3 68.3 96.7 10 11 12 13 14 29.6 29.9 29.9 30.3 31.3 36.0 39.5 40.4 44.3 44.6 50.4 76.7 78.3 60.0 71.7 85.0 85.0 88.3 100.0 100.0 100.0 91.7 15 16 17 18 19 20 21 22 23 24 100.0 25 55.9 71.7

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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(a)  Estimate β0 and β1 for the linear regression curve μY|x=β0+β1x. 
 (b)  Find a point estimate of μY |30. 
 (c)  Plot the residuals versus the x’s (arm strength). 
Make your own conclusion
1. Problem Solving
A study was conducted at Virginia Tech to determine if certain static arm-
measures have an influence on the "dynamic lift" characteristics of an
а.
strength
individual. Twenty-five individuals were subjected to strength tests and then were
asked to perform a weight- lifting test in which weight was dynamically lifted
overhead. The data are given here.
Arm
Strength, e
17.3
Dynamic
Lift, y
71.7
Individual
1
2
19.3
48.3
3
4
19.5
19.7
88.3
75.0
91.7
100.0
5
6
22.9
23.1
26.4
7
8
9
26.8
27.6
73.3
65.0
75.0
88.3
68.3
96.7
76.7
78.3
60.0
71.7
85.0
85.0
88.3
100.0
100.0
10
28.1
28.2
11
12
28.7
29.0
29.6
29.9
29.9
30.3
31.3
13
14
15
16
17
18
19
20
21
36.0
39.5
40.4
22
23
24
44.3
100.0
91.7
100.0
71.7
44.6
50.4
25
55.9
Transcribed Image Text:1. Problem Solving A study was conducted at Virginia Tech to determine if certain static arm- measures have an influence on the "dynamic lift" characteristics of an а. strength individual. Twenty-five individuals were subjected to strength tests and then were asked to perform a weight- lifting test in which weight was dynamically lifted overhead. The data are given here. Arm Strength, e 17.3 Dynamic Lift, y 71.7 Individual 1 2 19.3 48.3 3 4 19.5 19.7 88.3 75.0 91.7 100.0 5 6 22.9 23.1 26.4 7 8 9 26.8 27.6 73.3 65.0 75.0 88.3 68.3 96.7 76.7 78.3 60.0 71.7 85.0 85.0 88.3 100.0 100.0 10 28.1 28.2 11 12 28.7 29.0 29.6 29.9 29.9 30.3 31.3 13 14 15 16 17 18 19 20 21 36.0 39.5 40.4 22 23 24 44.3 100.0 91.7 100.0 71.7 44.6 50.4 25 55.9
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