Bottled Water. A project exploring the bottled-water phenomenon and preference of water types was conducted by researchers M. Lunsford and A. Fink in the article “Water Taste Test Data” (Journal of Statistics Education, Vol. 18, No. 1). One hundred nine subjects participated in double-blind taste tests of three different bottled water brands (Fiji, Aquafina, and Sam’s Choice) and tap water. Twelve people preferred the tap water, 27 Aquafina, 44 Fiji, and 26 Sam’s Choice.

At the 5% significance level, do the data provide sufficient evidence to conclude that the four different water types are not equally likely in preference?