Why is the CL for 99% 2. 576, shouldnt it be 2.578 like the CL for 90% being 1. 645?
Added by Kelly D.
Step 1
It is a statistical measure that quantifies the level of confidence that the statistical measure (like mean, standard deviation, etc.) lies within a certain range of values. The numbers you mentioned (2.576, 2.578, 1.645) are z-scores. Z-scores are a measure of Show more…
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