Graphing Calculator Example

Glue Strength: Four adhesives that are used to fix porcelain to teeth are tested in a completely randomized design. The experiment bonds porcelain to teeth and then a machine is used to pry the tooth from the porcelain. The amount of force needed to do this for each bond is recorded. Use the results below and a 1% significance level to construct an ANOVA table to test the claim that there is a significant difference between the bonding strengths.
     Adhesive
204 197 264 248
181 223 226 138
203 232 249 220
262 207 255 304
230 223 237 268
288 197 240 276