1. Three brands of reducing pills were tried on a sample of 10 female adults. The data are reflected on the table below in terms of weight loss (Ib) after a month of using these pills. Respondents 1 Brand A 4.1 Brand B 3.1 Brand C 3.6 2 3.1 3.3 3.8 3 3.6 3.5 3.0 4 4.2 4.9 3.1 3.8 4.1 3.2 4.7 3.9 3.3 7 4.1 4.0 3.9 8 2.8 3.9 4.6 9 3.0 4.1 2.9 10 4.2 4.0 4.2 Test if there is a significant difference in the average weight loss (in Ib) among the three groups of respondents using the three brands of reducing pills at 0.05 level of significant.

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