@article {COUSO201168, title = {Inner and outer fuzzy approximations of confidence intervals}, journal = {Fuzzy Sets and Systems}, volume = {184}, number = {1}, year = {2011}, note = {Preference Modelling and Decision Analysis (Selected Papers from EUROFUSE 2009)}, pages = {68 - 83}, abstract = {We extend the notion of confidence region to fuzzy data, by defining a pair of fuzzy inner and outer confidence regions. We show the connection with previous proposals, as well as with recent studies on hypothesis testing with low quality data.}, keywords = {Confidence region, Hypothesis testing, Possibility measure}, issn = {0165-0114}, doi = {https://doi.org/10.1016/j.fss.2010.11.004}, url = {http://www.sciencedirect.com/science/article/pii/S0165011410004550}, author = {In{\'e}s Couso and Luciano S{\'a}nchez} }