Statistics IITU Board 2081
Explain, stating clearly the assumptions involved in the t test for testing the significance of difference between two sample means. Measurements of the left and right hand gripping strengths of 8…
10Explain, stating clearly the assumptions involved in the t-test for testing the significance of difference between two sample means. Measurements of the left-and-right-hand gripping strengths of 8 left-handed writers are recorded:
Person
1
2
3
4
5
6
7
8
Left hand
112
131
142
90
125
130
95
90
Right hand
104
136
135
86
132
120
86
85
Do the data provide strong evidence that the people who write with left hand have greater gripping strength in the left hand than they do in the right hand? Use α=0.05.
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