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Twenty-five right-handed students were asked to turn a knob (using their right hands) that moved an indicator by screw action. There were two identical instruments, one with a right- hand thread (the knob turns clockwise) and the other with a left-hand thread (the knob turns counterclockwise). The data presented below gives the times (in seconds) each subject took to move the indicator a fixed distance: Obs. # R |Obs. # R Obs. # R Obs. # R 113 137 8 116 145 15 118 166 22 100 116 105 105 75 78 16 103 146 23 89 78 3 130 133 10 96 107 17 111 123 24 85 101 4 101 108 11 122 84 18 104 135 25 88 123 138 115 12 103 148 19 111 112 118 170 13 116 147 20 89 93 87 103 14 107 87 21 78 76 At 1% level of significance, can we conclude that these right-handed students found it easier to use the knobs with a right-hand thread? Use the following form of the difference: right-left. Give the test stat, critical region, And conclusion at 1% level of significand 6,

Twenty-five right-handed students were asked to turn a knob (using their right hands) that moved an indicator by screw action. There were two identical instruments, one with a right- hand thread (the knob turns clockwise) and the other with a left-hand thread (the knob turns counterclockwise). The data presented below gives the times (in seconds) each subject took to move the indicator a fixed distance: Obs. # R |Obs. # R Obs. # R Obs. # R 113 137 8 116 145 15 118 166 22 100 116 105 105 75 78 16 103 146 23 89 78 3 130 133 10 96 107 17 111 123 24 85 101 4 101 108 11 122 84 18 104 135 25 88 123 138 115 12 103 148 19 111 112 118 170 13 116 147 20 89 93 87 103 14 107 87 21 78 76 At 1% level of significance, can we conclude that these right-handed students found it easier to use the knobs with a right-hand thread? Use the following form of the difference: right-left. Give the test stat, critical region, And conclusion at 1% level of significand 6,

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 94E
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Twenty-five right-handed students were asked to turn a knob (using their right hands) that moved an indicator by screw action. There were two identical instruments, one with a right- hand thread (the knob turns clockwise) and the other with a left-hand thread (the knob turns counterclockwise). The data presented below gives the times (in seconds) each subject took to move the indicator a fixed distance: Obs. # R Obs. # R Obs. # R Obs. # R 113 137 8 116 145 15 118 166 22 100 116 105 105 75 78 16 103 146 23 89 78 3 130 133 10 96 107 17 111 123 24 85 101 4 101 108 11 122 84 18 104 135 25 88 123 138 115 12 103 148 19 111 112 118 170 13 116 147 20 89 93 7 87 103 14 107 87 21 78 76 At 1% level of significance, can we conclude that these right-handed students found it easier to use the knobs with a right-hand thread? Use the following form of the difference: right-left. Give the test stat, critical region, And conclusion at 1% level of significand 9, 2. 6.
Transcribed Image Text:Twenty-five right-handed students were asked to turn a knob (using their right hands) that moved an indicator by screw action. There were two identical instruments, one with a right- hand thread (the knob turns clockwise) and the other with a left-hand thread (the knob turns counterclockwise). The data presented below gives the times (in seconds) each subject took to move the indicator a fixed distance: Obs. # R Obs. # R Obs. # R Obs. # R 113 137 8 116 145 15 118 166 22 100 116 105 105 75 78 16 103 146 23 89 78 3 130 133 10 96 107 17 111 123 24 85 101 4 101 108 11 122 84 18 104 135 25 88 123 138 115 12 103 148 19 111 112 118 170 13 116 147 20 89 93 7 87 103 14 107 87 21 78 76 At 1% level of significance, can we conclude that these right-handed students found it easier to use the knobs with a right-hand thread? Use the following form of the difference: right-left. Give the test stat, critical region, And conclusion at 1% level of significand 9, 2. 6.
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