Seven golf balls from each of six manufacturers were randomly selected and tested for durability. Each ball was hit 300 times or until failure occurred, whichever came first.

A B C D E F 300 190 228 276 162 264 300 164 300 296 175 168 300 238 268 62 157 254 260 200 280 300 262 216 300 221 300 230 200 257 261 132 300 175 256 183 300 156 300 211 92 93 Do these sample data show sufficient reason to reject the null hypothesis that the six different brands tested withstood the durability test equally well? Use   0.05.

a. Solve using the p-value approach.

b. Solve using the classical approach.