(Designing Samples) is to select the sampling method, which is the most appropriate because the company could not survey population (Population) of all because it must cost a lot. The company may assign a group of clients to explore a sample (the Sample Group) or to split the survey from all groups. How many percent of the sample group. The decision to choose a sample in this step is a very important step, step one has to get the information because the sample selected is representative of the population (customers) that's fine.
การแปล กรุณารอสักครู่..