To see how much of a difference time of day made on the speed at which he could download les, a second-year university student performed an experiment. He placed a le on a remote sever and then proceeded to download it at three different time periods of the day. He downloaded the le 48 times in all, 16 times at each time a day, and recorded the time in seconds that the download took. Early (7 am.) Evening (5 pm.) Time (see) Time (sec) 68 299 138 367 75 331 186 257 68 260 217 269 93 252 90 200 71 296 154 204 166 190 130 240 72 350 81 256 76 282 129 320 Late night (12 am.) Time (sec) 216 175 274 171 187 213 221 139 226 128 236 128 217 196 201 161 (a) State the null and alternative hypotheses, being careful to talk about download time and time of day as well as parameters. (b) Perform an ANOVA on these data. What can you conclude? (0) Check the assumptions and conclusions for an ANOVA. Do you have any concerns about the experimental design or the analysis