in a study on the growth of children one of the 70 children had a mean – InterviewSolution

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1.	in a study on the growth of children one of the 70 children had a mean height of 65 cm and standard deviation of 2.5 cm while another group of 80 children had a main height of 68 cm and standard deviation of 3 cm is the difference between the two samples means statistically significant
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