O Stratified Sampling - it ensures we obtain a certain amount of both men and women in our sample. Another sampling method may result in a disproportionate amount of one gender. 1 pts D Question 9 In general, what would a researcher prefer in order to collect the most accurate data - an observational study or an experiment? Why? An experiment. That way the researcher can assign the treatments themselves, employ randomness, and ultimately make causal conclusions between treatment(s) and response. O An observational study. That way, they can definitively measure the effect of any confounding variables. An experiment. That way the researcher can demonstrate associations even though they can't draw causal causal conclusions, and response. An observational study. That way the researcher can assign the treatments themselves. employ randomness, and ultimately make causal conclusions between treatment(s) D Question 10 1 pts ere to search Hi