the height of 6 randomly chosen soldiers are in inches : 76 70, 68, 69, 69 and 68. those of six randomly chosen soldiers are 68, 64, 65, 69, 72 and 64. discus in the light of these data the suggestion that soldiers are on the average taller than soldiers. Use t-test (table value of t at 5% level for 10 d.f =2.23)
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