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 weightlifting test in which weight was dynamically lifted overhead. The data are given here.
Arm
Dynamic
Individual
Strength, x
Lift, y
1
17.3
71.7
2
19.3
48.3
3
19.5
88.3
4
19.7
75.0
5
22.9
91.7
6
23.1
100.0
7
26.4
73.3
8
26.8
65.0
9
27.6
10
28.1
11
28.2
68.3
12
28.7
96.7
13
29.0
76.7
14
29.6
78.3
15
29.9
60.0
16
17
30.3
85.0
18
31.3
19
36.0
20
39.5
21
40.4
22
44.3
23
44.6
24
50.4
25
55.9
(a) Estimate ß0 and ß1 for the linear regression curve µY |x = ß0 + ß1x.
(b) Find a point estimate of µY |30.
(c) Plot the residuals versus the x’s (arm strength). Comment.
Wit
Already registered? Login
Not Account? Sign up
Enter your email address to reset your password
Back to Login? Click here