The same six testers rated the taste of two ice creams. Taste ratings are not normally distributed, so a t-test should not be done.Is there a significant difference in the ratings of the two ice creams?
Brand A Brand B
Taster 1 7 4
Taster 2 5 6
Taster 3 9 7
Taster 4 4 7
Taster 5 8 5
Taster 6 8 7