Aresearcher conducts an experiment comparing three treatment conditions. the data consist of n =20 scores for each treatment condition. a. if the researcher used an independent-measures design, then how many individuals were needed for the study and what are the df-values for the f-ratio? explain in detail and show all formulas with symbols (and plug in numbers), steps, processes and calculations for all parts of the answers. b. if the researcher used a repeated measures-design, then how many individuals were needed for the study and what are the df-values for the f-ratio? explain in detail and show all formulas with symbols (and plug in numbers), steps, processes and calculations for all parts of the answers.