Most pregnancies are full term, but some are preterm (less than 37 weeks). Of those that are preterm, they are classified as early (less than 34 weeks) and late (34 to 36 weeks). A report examined those outcomes for one year, broken down by age of the mother. Is there evidence that the outcomes are not independent of age group? Early Preterm Late Preterm Under 20 129129 275275 20 to 29 248248 597597 30 to 39 163163 425425 40 or Over 2222 4141 Choose the correct null and alternative hypotheses below. A. Upper H 0H0: Age group and outcome are independent. Upper H Subscript Upper AHA: Age group and outcome are not independent. B. Upper H 0H0: Age group and outcome are not independent. Upper H Subscript Upper AHA: Age group and outcome are independent. C. Upper H 0H0: The proportions of early/late preterm births are the same for all age groups. Upper H Subscript Upper AHA: The proportions of early/late preterm births are not the same for all age groups.