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6 (9) Next question it the 1980s, it was generally believed that congenitat abnormalities affected about 8 - a large nation's children. Some people -

6 (9)

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Next question it the 1980s, it was generally believed that congenitat abnormalities affected about 8 - a large nation's children. Some people - believe that the increase in the number of chemicals in the environment has led to an increase in the incidence of abnormalities A recent study examined 422 randomly selected children and found that 49 of them showed signs of an abnormality. is this strong evidence that the risk has increased? (Consider a P-value of arOUnd 0.05 to represent reasonable evidence.) Complete parts a through i. -<:>,e~ - a) Write appropriate hypotheses. Let p be the proportion of children with genetic abnormalities. Choose the correct answer below. 0 A. HO: p=0.1161 vs. HA: p0.1161 O B. H0:p=0.1161 vs. HA: p 0.08 O D. H0: p=0.08 vs. HA: p0.08 O E. H01p=0.1161vs.HA:p>0.1161 O F. Ho: p=0.08 vs. HAzp

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