Intraocular pressure (IOP) was measured in 400 people. Mean was found to be 25 mm Hg and Standard detion was recorded 10 mm Hg. 95% Confidence Interval would be?
In the given question, Mean (u) = 25 mm Hg standard detion = 10 mm Hg, Z95 = 1.96 (as we are asked 95% CI) Sample size, n =400 Confidence intervals (CI 95) = Mean +- Z95 (SE) CI-95 = 25 +- 1.96 (10/ [?]400) = 24-26 mm Hg
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23-27
24-26
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