Answered: The Journal of American Medical…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

The Journal of American Medical Association published a study that examined a sample of pregnancies that resulted in the birth of twins. Births were classified as preterm with intervention (induced labor or cesarean), preterm without such procedures, or term or post term. Researchers also classified the pregnancies by the level of prenatal care the mother received (inadequate, adequate or intensive.) The data is summarized below. Figures are in thousands of births. Is there evidence of an association between the durations of the pregnancy and the level of care received by the mother?

	Preterm with procedures	Preterm without procedures	Term or post term	Total
Intensive	18	15	28	61
Adequate	46	43	65	154
Inadequate	12	13	38	63
Total	76	71	131	278

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