A randomly selected sample of marketing professionals was presented with various scenarios involving ethical issues. one issue was the use of ultraviolet ink on a mail survey promising confidentiality. the ink was used to identify the respondents for adequate cross-tabulation of the data. of the 205 marketing researchers surveyed, 117 said they disapproved of the action. consider 5000 marketing researchers surveyed as the whole population, where the number of disapproved of the action is 3000. what is the probability that the sample proportion is greater than 0.55? check the assumptions first.