The design of controls and instruments affects how easily people can use them. A student project investigated this effect by asking 25 right handed students to turn a knob with their right hands that moved an indicator by screw action. There were two identical instruments, one with a right-hand thread and the other with a left-hand thread. The table given has the data from the student project. 1. Calculate and interpret a 90% confidence interval for the mean time advantage of right hand over left hand threads in the setting above.
The design of controls and instruments affects how easily people can use them. A student project investigated this effect by asking 25 right handed students to turn a knob with their right hands that moved an indicator by screw action. There were two identical instruments, one with a right-hand thread and the other with a left-hand thread. The table given has the data from the student project. 1. Calculate and interpret a 90% confidence interval for the mean time advantage of right hand over left hand threads in the setting above.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
The design of controls and instruments affects how easily people can use them. A student project investigated this effect by asking 25 right handed students to turn a knob with their right hands that moved an indicator by screw action. There were two identical instruments, one with a right-hand thread and the other with a left-hand thread. The table given has the data from the student project.
1. Calculate and interpret a 90% confidence interval for the mean time advantage of right hand over left hand threads in the setting above.
Transcribed Image Text:hus (Alt+/)
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Subject
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HARG
14
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19
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25
n
A
1
[台
Right hand
threads (sec)
113
105
130
101
138
118
87
116
75
96
122
103
116
107
118
103
111
104
111
89
78
100
89
85
88
3
2
100%
Left hand
threads (sec)
137
105
133
108
115
170
103
145
78
107
84
148
147
87
166
146
123
135
112
93
76
116
78
101
123
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