of smoking in Harris county. 675 people sampled, 522 were non-smokers. What is t
ID: 3340621 • Letter: O
Question
of smoking in Harris county. 675 people sampled, 522 were non-smokers. What is the 95% Confidence (74.2%, 80.5%) (19.5%, 25.8%) O ('19, 25) None of the above QUESTION 2 Confidence Interval, would you say that college students are within the normal BMIl range (normal BMl is defined as 18.5 to 24.9 by the CDC) ONo, since the point estimate of 25.6 is greater than 24.9 O Yes, because the lower confidence limit is below 24.9 O cannot tell since the 95% Cl ranges from 24.6 to 26.6 O Sure, why not? QUESTION 3 Suppose the data in the table below was found from a case-control study, What measure of significant? Why or why not? exposed non-exposed 37 120 390 OR 1.56, (1.00, 2.43), significant since O is not contained in the contidence interval OR, 1.56, (1.00, 243), significant since 1 is not contained in the contidence intervalExplanation / Answer
Solution:
(1) (d) None of these.
(2) Cannot tell since the 95% CI ranges from 24.6 to 26.6.
(3) OR,1.56(1,2.43) significant since 0 is not contained in the confidence interval.
A measure of association measure by Odds Ratio.
OR = AD/BC = 37*390/(120*77) = 1.56
Cheers!!
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.