please help!

3. ) Instead of performing an unreplicated 2" factorial design, a re- searcher performed four separate 2"-2 fractional factorial experiments to investigate the effect of 5 factors. The same factors and factor levels were considered in each experiment. Below are the generators used in each 25-2 experiment. . Experiment 1 generators: ABD and ACE . Experiment 2 generators: -ABD and ACE . Experiment 3 generators: ABD and - ACE . Experiment 4 generators: -ABD and -ACE Below are the estimates of the effect of B (confounded with the effects of its aliases) calculated from the data generated in each experiment. . Experiment 1 estimate of B (confounded with its aliases): 20 . Experiment 2 estimate of B (confounded with its aliases): 12 . Experiment 3 estimate of B (confounded with its aliases): 17 . Experiment 4 estimate of B (confounded with its aliases): 15 Use the information above to determine the unconfounded (i.e. "de-aliased" ) estimate of B as well as the unconfounded estimate of each alias of B