In a population of 100 prevalence of candida glabrata was found to be 80%. If the investigator has to repeat the prevalence with 95% confidence what will the prevalence be
Correct Answer: 72-88%
Description: Confidence Intervals for Population proportions (For 95% Confidence)
CI = P + 2 SEP = P + 2 √pq/n
Here, P=0.80 (80%); p=0.80;
q= 1-p = 1-0.80 = 0.20;
n=100 CI = 0.80 + 2 √0.8*0.2/100
= 0.80 + 0.08
= 0.72, 0.88 (72%, 88%)
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