a group of 5 patient treated with medicine a weigh 42, 39, 48, 60 and 41 kgs. second group of 7 patient from the same hospital treated with medicine b weigh 38, 42,56, 64, 68, 69 and 62 kgs. do you agree with the claim that medicine b increase the weight significantly
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No I won’t agree.
The weight claimed here have a minimum difference in their mean average weight.
This minimum change in weight will not determine the significance of the medicine.
A better result with large and major difference will be helpful to find the significance of the medicine B which was provided.
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