[R] confidence intervals

Bogdan Tanasa t@n@@@ @end|ng |rom gm@||@com
Sat Aug 27 02:55:35 CEST 2022

Dear all,

Although I know that it is not a statistics mailing list, given my work on


I would appreciate to have the answer to a question :

given two variables a and b (a and b can have 1000 paired-values) and a
calibration number "cal",

why the 95 confidence interval has been calculated as such for each value
a(i) and b(i) :

100 / cal * sqrt (( a/ (b^2) + (a^2) / (b ^3)) * 1.96

Thank you,


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