Problem 3

The time it takes to three brands of caulk to fully dry is studied by a construction contractor. Six beads from each of the three brands are randomly placed in the same space in a bathroom. The time for each bead to dry is listed below. Use a 5% significance level to test the claim there is a difference between the drying times for the different brands of caulk, and form an ANOVA table.
       Brand
A         B      C
24.7 22.1 25.7
28.6 20.2 24.3
25.1 21.1 23.6
25.3 23.5 26.1
26.0 22.8 26.9
25.9 22.7 24.2