O he on Bent on ports ants Murse 6.34 Prenatal vitamins and Autism: Researchers studying the link between prenatal vitam

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O He On Bent On Ports Ants Murse 6 34 Prenatal Vitamins And Autism Researchers Studying The Link Between Prenatal Vitam 1 (48.16 KiB) Viewed 44 times

O he on Bent on ports ants Murse 6.34 Prenatal vitamins and Autism: Researchers studying the link between prenatal vitamin use and autism surveyed the mothers of a random sample of children aged 24-60 months with autism and conducted another separate random sample for children with typical development. The table below shows the number of mothers in each group who did and did not use prenatal vitamins during the three months before pregnancy (periconceptional period). (Schmidt, 2011) No vitamin Vitamin Total Ho: Pvitamin Pro vitamin Ha: Pvitamin Pro vitamin Ho: Pvitamin Ha: Pvitamin (a) State appropriate hypotheses to test for independence of use of prenatal vitamins during the three months before pregnancy and autism. Pro vitamin Poovitamin Autism Typical Development Total 181 302 483 Ho: Pvitamin Pro vitamin Ha: Pvitamin Pno vitamin 111 143 254 (b) Complete the hypothesis test and state an appropriate conclusion, What is the value of the test statistic for this test? 8.86 70 159 229 decimal places) What is the p-value associated with this test? 0.0029 to four decimal places) The result of the hypothesis is Since p's a we reject the null hypothesis and accept the alternative Since pia we reject the null hypothesis and accept the alternative x (Please round to two Since pa we do not have enough evidence to reject the null hypothesis Since pa awe accept the null hypothesis Since pru we fall to reject the null hypothesis (Please round