Provide at least two pors and cons for each of these scenarios.
1.A supermarket was interested in determinig its image. It dropped a short questionnaire into the grocery bag of each customer before putting in the groceries.
2.To assess the extent of its trade area, a shopping mall stationed interniews in the parking lot every Monday and Friday evening. Interviewers walked up to persons after they had parked their cars and asked them their zip codes.
3.To assess the popularity of a new movie, a major studio invited people to call a 900 number and vote yes, they would see it again, or no, they would not. Each caller was billed a two dollar charge. Recommend one more research method that would be more effective than the one given for each scenario.