A situation is given below. For the situation, respond to the following research design questions. A foreman thinks that the low efficiency of the machine tool operators is directly linked to the high level of fumes emitted in the workshop. He would like to prove this to his supervisor through a research study. a. What would be the nature of the study that would be designed - Exploratory, descriptive, or hypothesis-testing? b. Give reasons for your answer to (a) above. C. Would it be a Field study, Comparative study, Lab experiment or Field experiment? d. Would it be a causal or correlational study? e. Justify the reasons for your answer to (d). f. Would it be a longitudinal or cross-sectional study? g. How would you explain your answer to (f) above? h. What would be the unit of analysis? i. Defend your answer to (h) above