1- Is it ethical for a manufacturing company that wishes not to be identified as the sponsor of a mail survey to invent a fictitious research company name and print that name on letterhead paper for the survey? For example, a firm in Ohio wishing to disguise the fact that it is surveying its own distributors might choose a name such as North Central Research Corporation under which to present the survey.
2- What advantages do Internet surveys have? What disadvantages?
3- Under what condition are observation study most appropriate?
4- What are the benefits of stratified sampling?