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(Solved): 10. (10pts) The Department of Children and Families reports that 20% of children have Attention De ...
10. (10pts) The Department of Children and Families reports that 20% of children have Attention Deficit Disorder (ADD). We conduct a research study in an attempt to prove that it is more. In a sample of 250 children, we found that 60 children have ADD. (a) (2pts) Develop the null and alternative hypotheses: (b) (5pts) At a = 0.04, determine if the researcher collected sufficient data to Reject Ho. Show all supporting work using only the methods learned in class. (c) (3pts) Based on your answer in part (b), what is your conclusion as it applies to THIS SITUATION?
Expert Answer
(a)Here the claim is that more than 20% of children have ADD.So the null and alternate hypothesis are: (b) Sample proportion: Test stati