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6 24 - Section 6.3 Inference for a Difference in Proportions Question150f19 -/1 E View Policies Current Attempt in Progress Autism and Maternal Antidepressant Use A recent study,1 compared 298 children with Autism Spectrum Disorder to 1507 randomly selected control children without the disorder. Of the children with autism, 20 of the mothers had used antidepressant drugs during the year before pregnancy or the rst trimester of pregnancy. Of the control child ren, 50 of the mothers had used the drugs. 1Croen, L, Grether, J., Yoshida, C., Odouli, R., and Hendrick, V., "Antidepressant Use During Pregnancy and Childhood Autism Spectrum Disorders," Archives ofGeneral Psychiatry, 2011 Nov; 68(11): 1104-12. (a) Does prenatal exposure to antidepressants increase risk of autism? Test whether the results are signicant at the 5 % level using a two proportion 2 test. State the null and alternative hypotheses. Use subscripts 1 for the children with autism and 2 for the control group. eTextbook and Media (b) Give the test statistic and thep-value. Round your answer for the test statistic to two decimal places and your answer for thep-value to three decimal places. teststatistic = n p-value = n eTextbook and Media (c) What is the conclusion? 0 Reject HO. 0 Do not reject H0. eTextbook and Media (d) Can we conclude that prenatal exposure to antidepressant medicine increases the risk of autism in the child? 0 Yes 0 No eTextbook and Media Save for Later Attempts: 0 of 4 used Question List Question 1 Multipart Question 2 Multipart Question 3 Multipart Question 4 Multipart Question 5 Math Fill in the Blank Question 6 Math Fill in the Blank Question 7 Math Fill in the Blank Question 8 Math Fill in the Blank Question 9 Question 9 Multioart Question 10 Multiaart Question 11 Multioart Question 12 Multioart Question 13 Multioart Question 14 Multioart Viewing Question 15 Multipart Question 16 Multiple Choice Question 17 Math Fill in the Blank Question 18 Math Fill in the Blank Question 19 Math Fill in the Blank X 0.5 / 1 D Partially correct 0.5 / 1 D Partially correct 1/1 J Correct 1/1 J Correct 0.75 / 1 Q Partially correct 0.25 / 1 ' Partially correct 1/1 J Correct 0.33 / 1 W Partially correct 0.78 / 1 0.78 / 1 Q Partially correct 1 / 1 ~/ Correct 0.78 / 1 Q Partially correct -/ 1 Not started -/ 1 Not started 1/1 J Correct -/ 1 Not started 1 / 1 ~/ Correct -/ 1 Not started 1/1 J Correct -/ 1 Not started