Determine whether the sampling method described below appears to be sound or is flawed. in a survey of 794 human resource professionals, each was asked about the importance of the experience of a job applicant. the survey subjects were randomly selected by pollsters from a reputable market research firm. a) it is flawed because it is a census b) it is flawed because it is not statistically significant. c) it appears to be sound because the data are not biased in anyway. d) it is flawed because it is a voluntary response sample.