I\' ve devised an exercise system to improve to improve vertical jump ability. T
ID: 3126029 • Letter: I
Question
I' ve devised an exercise system to improve to improve vertical jump ability. The data is as follows:
Participant number
On program or off program?
Measured vertical jump
Height
IQ
1
On program
27.6
65
93
2
On program
24.4
61
94
3
On program
29.9
73
99
4
On program
25.8
66
103
5
On program
28.1
69
112
6
Off program
26.8
66
93
7
Off program
28.8
73
94
8
Off program
26.2
65
99
9
Off program
27
69
103
10
Off program
23.4
61
112
Does it work? What type of test is most appropriate for these data?
Participant number
On program or off program?
Measured vertical jump
Height
IQ
1
On program
27.6
65
93
2
On program
24.4
61
94
3
On program
29.9
73
99
4
On program
25.8
66
103
5
On program
28.1
69
112
6
Off program
26.8
66
93
7
Off program
28.8
73
94
8
Off program
26.2
65
99
9
Off program
27
69
103
10
Off program
23.4
61
112
Explanation / Answer
Considering the type of programs and the measured vertical jump ability, you can go for 2proportion t test to see if there is any improvement. Assuming that the participants who are not in program are control group. Now, question lies lies regarding the height and IQ of participants. If participants are randomly selected not based on their height or IQ, then fine otherwise, sampling in first hand itself is biased.
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