Fuzzy confidence intervals for mean of Gaussian fuzzy random variables

► The classical confidence intervals are not suitable for dealing with imprecise data. ► Indeed, such confidence intervals could not consider the fuzzy parameters. ► Fuzzy confidence interval (FCI) is introduced and investigated for the above situations. ► A procedure is given to obtain the membership of each fuzzy parameter in the FCI. ► The proposed method has some advantages with respect to the common methods.