Question

Is there any difference between the groups?if yes why?

Answer 1

Hypothesis Test for the Difference Between Two Means. The null hypothesis is that the difference is some amount d0 specified by the researcher. H0 : µm − µw. = d0. H1 : µm − µw. = d0. For example, d0 = 0 would set up the test that there is no.

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Answer 2

yes! because groups are of various type people make their group of different type of work .......