There are 5 parts, label each part and all their answers clearly! Part 2 Part 3
ID: 3269315 • Letter: T
Question
There are 5 parts, label each part and all their answers clearly!Part 2
Part 3
Part 4 Part 5
Men diagnosed with cancer were randomly assigned to either undergo surgery or not. Among the 332 men who had the surgery, 15 eventually died of cancer, compared with 29 of the 331 men who did not have surgery. a) Choose the correct answer below. )A O A. Experiment because men were randomly assigned to have surgery or not O B. Observational study because men were randomly assigned to have surgery or not O C. Experiment because an observation was made about men diagnosed with cancer O D. Observational study because an observation was made about men diagnosed with cancer. b) Let Modifying Above p with caret 1D1 be the sample proportion of men who did not have surgery and died, and let Modifying Above p with caret 2
Explanation / Answer
Question Part 1)
Answer:
Question b)
Confidence Interval:
(p1^-p2^) (-/+) E
E = zc* sqrt ((p1*(1-p1))/n1) + ((p2*(1-p2))/n2))
p1^ = 15/332 = 0.0452
p2^ = 29/331 = 0.0876
E (p1-p2) = 0.0193
P1^-p2^ = -0.0424
(p1^-p2^) (-/+) E
Answer:
-0.080 and -0.005
Answer:
does not
is
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