Results of a 2017 survey of a sample of executives from 161 banks reveal insights on banking priorities among bank institutions in a certain region. As bank institutions begin planning for a new year, of utmost importance is boosting profitability and identifying growth areas. Fifty-two percent of bank institutions note customer experience initiatives as an area in which spending is expected to increase. Implementing a customer relationship management (CRM) solution was ranked as the top most important omnichannel strategy to pursue with forty percent of institutions citing digital banking enhancements as the greatest anticipated strategy to enhance the customer experience. Complete parts (a) through (d). a. What is the population of interest? all bank institutions in the region that are implementing a customer relationship management solution all bank customers in the region that use digital banking all bank institutions all bank executives representing bank institutions the 161 bank executives in the region b. What is the sample that was collected? all bank executives the 161 executives representing bank institutions the 64 bank institutions in the region the 84 bank institutions in the region that note customer experience initiatives as an area in which spending is expected to increase the 64 bank institutions in the region that cite digital banking enhancements as the greatest anticipated strategy c. What is a possible parameter of interest? A. the proportion of bank executives in the region who were sampled . the proportion of bank institutions in the region that have digital banking . the proportion of bank executives representing bank institutions that cite digital banking enhancements as the greatest anticipated strategy . the proportion of bank institutions in the region that cite digital banking enhancements as the greatest anticipated strategy