Congenital abnormalities

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Stats XL10 Practice Quiz 7In the 1980’s it was believed that congenital abnormalities affected about 5% of the nation’s children. Some people believe that an increase in the chemicals in the environment has led to an increase in the number of abnormalities. A recent study examined 384 randomly selected children and found that 23 of them showed signs of an abnormality. Does this provide evidence that the risk of congenital abnormalities has increased? Use – = 0.05 to make your decision.1) What would the appropriate hypotheses be for this problem?Please, provide each steps in details – make it easier.

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