Posted by Anonymous on Monday, January 14, 2013 at 6:28pm.
Prospective Cohort Study
The following tables show the crude and sexspecific results from a Prospective Cohort Study that examines the association between a binary exposure (E) and the development of a disease (D) during 20 years of followup.
Full Data:
SexSpecific Data:
Males
1. Assume that this cohort is a simple random sample from a broader population of interest. Model the number of disease positive individuals among all exposed individuals in the sample using the binomial distribution with probability of disease ; and model the number of disease positive individuals among the unexposed in the sample using a binomial distribution, with probability of disease . Estimate , the proportion of exposed individuals who are disease positive, and provide an exact 95% confidence interval.
Estimated Proportion:
unanswered
Confidence Interval:
Lower Bound:
unanswered
Upper Bound:

statistics  jhikjhak, Tuesday, January 15, 2013 at 12:10pm
Use these data to solve the above problem, it will become easier
Full data
D+ D Total
E+ 30 270 300
E 20 180 200
Total 50 450 500
Male
D+ D Total
E+ 12 108 120
E 8 72 80
Total 20 180 200
Female
D+ D Total
E+ 18 162 180
E 12 108 120
Total 30 270 300

statistics  dani, Tuesday, January 15, 2013 at 1:53pm
1. 2.5

statistics  Gaurav, Wednesday, January 16, 2013 at 12:26pm
Please do not answer these questions, It is not a help. It is challenge for a new education system, I think this should be immediately stopped to cheer at least those who are working hard to learn

statistics  mark, Thursday, January 17, 2013 at 9:35am
these numbers are wrong. did you change the numbers???
where are you getting this data???

statistics  Anonymous, Sunday, January 20, 2013 at 4:13am
please help, today is the last date to attempt for this

statistics  Ishika Patel, Goa, Sunday, January 20, 2013 at 4:41pm
How do you find confidence interval for the first one(first part)?

statistics  lili, Sunday, January 20, 2013 at 7:00pm
i have first part. If u have a second, wy can exchange.
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