Aprofessor wanted to compare two types of teaching styles. one type is by tutorials and the other is giving a lecture. it is a common belief that tutorials result in better retention. this belief is tested by having 10 students learn a topic by each method and then having them take a test on their knowledge of the material that was covered. a coin flip was used to determine which type of teaching method a student would be given first. results indicated that there was no difference in the two types of presentation. complete parts (a) through (f) below.(a) what type of experimental design is this? (b) what is the response variable in this study? (c) what is the factor that is set to predetermined levels? what is the treatment? (d) identify the experimental units. choose the correct answer below.(e) why is a coin used to decide the teaching method a student would be given firstteaching method a student would be given first?