ABSTRACT
Numbers of consumers necessary for sensory acceptability tests using hedonic scales have been calculated by Hough et al. (2006b). Meeker and Escobar (1998) give different results on sample size determination for life tests. However, their results are only appropriate for right-censored data and cannot be applied in consumers’ accepting or rejecting frameworks where interval-censored observations are present. As an alternative, also discussed in Meeker and Escobar (1986), simulation has proven to be a powerful tool for planning survival analysis experiments.
