Researchers at the University of Teaville in Texas performed a cohort study to investigate the relationship between mate

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Researchers At The University Of Teaville In Texas Performed A Cohort Study To Investigate The Relationship Between Mate 1 (91.08 KiB) Viewed 35 times

Researchers at the University of Teaville in Texas performed a cohort study to investigate the relationship between maternal smoking in pregnancy and adolescent obesity. To ensure that the study population was representative of the Teaville population, they randomly selecled 600 infants at birth across Teaville. Subjects were followed to age 20 to determine if smoking status of the mother during pregnancy is associated with obesity status at age 20. Several subjects were lost to follow-up resulting in only 450 teens contributing obesity data at the close of the study. The classifications are presented in the 2x2 table below. Maternal Smoking Status Obesity Status at age 17 During Pregnancy Obese Non-Obese Total Smoked throughout 23 75 98 Never Smoked 49 303 352 Total 72 378 450 According to data from the CDC's Youth Risk Behavior Surveillance System (YRBSS), the prevalence of obesity among 20 years olds in Teavile is 11% Using the z-test for a single proportion, test whether the proportion of obese children in this study differs from that of the Teaville population of 20 year old teens. Test at the 5% level of significance. (Use the 7-step hypothesis testing procedure] 1) Using statistical notation. State the appropriate null and alternative hypothesis 2) State the rejection region at the 5% alpha level i.e. determine the decision rule. 3) Complete the value of your test statistic 4)Draw the curve aid and do you reject or fail to reject the rull hypothesis? Why? Or Why not? 5) What is the conclusion? And What is the p-value? M