Three groups of subjects were asked to perform a single bench press at the beginning of the study to establish their baseline capacity.

Then, one group underwent a low-intensity training program, another group underwent a high-intensity training program, and the control group did not train.

After the training programs were complete, another maximal single bench press was performed.

The data in the table represents each group's pre and post training maximum weight values, in pounds.

1. Perform an ANCOVA on the data where group is the independent variable, pretest maximum weight is the covariate, and posttest maximum weight is the dependent variable.

2. Construct an ANCOVA summary table. Does the intensity of the training programs have different effects on the maximum weight of the subjects?

3. Do the data violate the homogeneity of regression assumption?

4. Compare the three groups using

control pre control post

101. 98 293. 295 143. 146 154. 150 172. 168 213. 217 134. 133 299. 300 110. 105 195. 198 154. 144 198. 192

Low intent. pre. Low intent post 256. 260 129. 144 241. 248 185. 199 179. 185 249. 261 305. 315 141. 159 105. 121 90. 105 210. 212 215. 230

high intensity pre. high intensity post 267. 289 230. 256 100. 125 174. 204 132. 151 186. 214 240. 265 310. 320 104. 123 157. 169 136. 144 214. 220