In a random sample of 500 people aged 20-24,22% were smokers.In a random sample of 450 people aged 25-29,14% were smokers.Construct a 95% confidence interval for the difference in smoking rates for the two groups.
A) (0.032,0.112)
B) (0.048,0.112)
C) (0.035,0.125)
D) (0.032,0.128)
E) (0.025,0.135)
Correct Answer:
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