Question: Suppose in a study with a large sample, the mean reduction in anxiety is reported as 8.0 points on an anxiety scale, 99% CI [2.0,

Suppose in a study with a large sample, the mean reduction in anxiety is reported as 8.0 points on an anxiety scale, 99% CI [2.0, 14.0]. What, approximately, is the equivalent 95% CI? The equivalent 80% and 99.9% CIs?

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