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normal-mean-ci-on-sequence items alphaprocedure

returns two values, the upper and lower bounds on the mean of the given items, assuming they are normally distributed; the bound is for confidence (1-alpha).

> (normal-mean-ci-on-sequence '(1 2 3 4 5) 0.9)
2.40860081649174
3.59139918350826
; 2 values