we just need answer for the question number 4

n... Summary | 191 "As digital banking has surpassed traditional branch-based banking as the channel of choice, it has become a primary differentiator among the brands. It's a key differentia- tor for the highest performers in the Big 5 and mid banks segment and a contributor as to why some mid banks outperform the Big 5 Banks from an overall customer satisfac- tion standpoint," said Li. Unfortunately, the increased online presence of consumers has not increased their satisfaction with online services. This year, online satisfaction decreased by eight points as compared to last year and the primary reason for the decrease is lower ratings for website navigation ease as well as the range of services available to be performed online. 28 QUESTIONS 1. Suggest three types of scales that could be used to measure consumer satisfaction. 2. Given the purpose of the study as described above, name a scale that could have been used across all adult age groups and education levels. 3. Is it possible to adequately measure satisfaction with dichotomous questions, such as those with Yes/No, True/False, or Agree/Disagree answers? If yes, phrase the questions. If not, explain why. 4. What measurement problems do you think the research team may have encoun- tered in this survey? 5. Would it have been a good idea to simply use open-ended questions? Why