# Most pregnancies are full term, but some are preterm (less than 37 weeks). Of those that…

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? Under 20 20 to 29 30 to 39 40 or Over Early Preterm 129 249 163 Late Preterm 275 593 428 39 24 Choose the correct null and alternative hypotheses below. O A. Ho: Age group and outcome are not independent. Ha: Age group and outcome are independent. O B. Ho: The proportions of early/late preterm births are the same for all age groups. HA: The proportions of early/late preterm births are not the same for all age groups. O C. Ho: Age group and outcome are independent. Ha: Age group and outcome are not independent. OD. Ho: The proportions of early/late preterm births are not the same for all age groups. HA: The proportions of early/late preterm births are the same for all age groups. Compute the x statistic. (Round to three decimal places as needed.)
Find the P-value. P-value = (Round to three decimal places as needed.) State the conclusion. Choose the correct answer below. O A. The P-value is greater than or equal to the level of significance, a = 0.01. There is sufficient evidence to reject Hy and conclude the proportions of early/late preterm births are not the same for all age groups. O B. The P-value is less than the level of significance, a=0.01. There is sufficient evidence to reject H, and conclude that age group and outcome are independent. O c. The P-value is greater than or equal to the level of significance, a=0.01. There is insufficient evidence to reject Hy and conclude that age group and outcome are not independent. OD. The P-value is less than the level of significance, a = 0.01. There is insufficient evidence to reject Ho and conclude the proportions of early/late preterm births are not the same for all age groups.
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