Question 41 42 Points In the 1980s it was generally believed that congenital abnormalities affected about 5% of the nation's children. It is hoped that improved prenatal care has caused a decrease in the incidence of abnormalities. A recent study examined 3840 randomly selected children and found that 152 of them showed signs of an abnormality. Is this strong evidence that the risk has decreased? Use a a = 0.01 level of significance. Your solutions will include words, symbols, and numbers. Write the null and alternative hypotheses: . H : Blank 1 Blank 2 Blank 3 . H, : Blank 4 Blank 5 Blank 6 Compute the point estimate, the best estimate of the population parameter you are testing. Round to four decimal places: . Blank 7 Verify that the requirements for the hypothesis test have been met. Do not round: . The children are selected by Blank 8Blank 9 sampling . npo(1 - Po) = Blank 10 2 Blank 11 . The sampled children are independent of each other; the sample size is no more than Blank 12% of the population size. Use StatCrunch to compute the test statistic and the P-value. Round to four decimal places: . test statistic = Blank 13 . P-value = Blank 14