Consider the following and compare it with what you learned from the textbook.

Wheels R Us is a large manufacturer of tires in Philadelphia, PA. The poor performance of the auto industry has had a negative impact on the tire industry. To maintain a competitive position, manufacturers offer additional discounts and sales promotions to their customers. The company's management is concerned about wholesaler reaction to a new discount policy that they are considering. The company has recently taken following steps: 

• The sampling frame was defined as a list of 1000 of the largest wholesalers that stocked Wheels R Us tires, and the sampling elements were to be randomly selected from the list.
• A call back technique was employed, with callbacks being made each day at the same time of the original attempted contact.
• The sample size was quadrupled from 200 to 800 respondents.
• The sample elements that refused to cooperate were to be substituted by the next element on the list.
• An incentive of $1 was offered to respondents.

Please answer the following questions:

(a) Critically evaluate the above five steps implemented to prevent the occurrence of errors. Please comment on whether or not you think they are appropriate.

(b) Suggest remedies or corrections if you feel that these steps are inappropriate.