A group of 5 patients treated with a medicine 'A' aeigh 42,3,9,48,60 and 4r kg; a second group of 7 patients from the same hospital treated with medicine 'B' weigh 38,42,56,64,68,69 and 62 kg.Do you agree with the claim that medicine 'B' increases the weight significantly? The value of t at 5% level of significance for 10 d.f.is 2.22281

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