Usher and Srinivasan [Quality Engineering, 13(2), 161–168, 2000–2001] described a 24 experiment for which there were six observations per treatment combination, but the data were not analyzed as having come from a replicated experiment. Specifically, the authors stated “Note that these six observations do not represent true replicates in the usual sense, because they were not manufactured on unique runs of the process.” Consequently, the average of the six values at each treatment combination was used as the response value, and the data were thus analyzed as if they had come from an unreplicated experiment. Explain how analyzing the data as if the data had come from a replicated experiment could produce erroneous results.