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It the​ 1980s, it was generally believed that congenital abnormalities affected about 7​% of a large​...

It the​ 1980s, it was generally believed that congenital abnormalities affected about 7​% of 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 423 randomly selected children and found that 51 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 f. ​a) Write appropriate hypotheses. ​b) Check the necessary assumptions. ​c) Perform the mechanics of the test. What is the​ P-value? ​d) Explain what the​ P-value means in this context. ​e) What's your​ conclusion? f) Do environmental chemicals cause congenital​ abnormalities?

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