Normality testing. Data collected in the presence of 1 μM cytosolic Ca²⁺ and 1 mM lumenal Ca²⁺ in three different experimental situations. Control represents channels that were not subjected to the CSQ2 stripping process. Stripped represents channels that underwent the stripping process. Replaced represents stripped channels after CSQ2 (0.5 μg/ml) was added to the luminal bath. Open symbols are individual determinations. Filled symbols are means (±SEM). Outcome of the Anderson-Darling and Shapiro-Wilk normality tests are shown at the bottom.