Question

Painkillers and Miscarriage A study examines the link between miscarriage and the use of painkillers during pregnancy. Scientists interviewed 1009 women soon after they got positive results from pregnancy tests about their use of painkillers around the time of conception or in the early weeks of pregnancy. The researchers then recorded which of the pregnancies was successfully carried to term. The results are in the table below. (NSAIDS refer to a class of painkillers that includes aspirin and ibuprofen.) Does there appear to be an association between having a miscarriage and the use of painkillers? Miscarriage No miscarriage Total 18 75 NSAIDS 57 24 148 172 Acetaminophen 103 659 762 No painkiller Total 1009 145 864 Table 1 Does the use of painkillers increase the risk of miscarriage?

Answer 1

Ho there is no arociation between the variables Hai there is an association between the valiables - Col total Expected value = low tot Grand total 18 x ² = 56-62 10.118 64.222 24.7175 147.282 109.504 652.495 57 24 148 103 659 4.83924 0.812141 0.02083 0.00349 0.386359 0.06484 df = (8-11) CCAD test statistic, x² = 6.126 = (6:13) P-value=0.0467 - 10.046) assume 20.05 P-value La reject to