Question

It is generally believed that nearsightedness affects about 12% of all children. A school district has registered 170 incoming kindergarten children.
a) Can you use the Normal Model to describe the sampling distribution model for the sample proportion of children who are nearsighted? Check the conditions and discuss any assumptions you need to make.
b) Sketch and clearly label the sampling model, based on the 68-95-99.7 Rule.
c) How many of the incoming students might the school expect to be nearsighted? Explain.


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  • CreatedMay 14, 2015
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