WDSU TV commissioned a survey of 767 randomly selected Jefferson Parish registered voters that was conducted March 4-5, 2018 by the University of New Orleans Survey Research Center on the topics of the Jefferson Parish Sheriff’s race scheduled for March 24, 2018 and on the job approval of Jefferson Parish President Mike Yenni. Survey respondents were asked in an interactive voice response telephone survey (IVR)1 who they preferred in the upcoming sheriff’s race and whether they approved or disapproved of Yenni’s job performance. This survey of 767 randomly selected respondents yields a margin of error of +/- 3.5% at a confidence level of 95%. The findings from the current poll are compared with the results from an October 2017 poll of 426 randomly selected Jefferson Parish registered voters that inquired into who respondents supported in the sheriff’s election and how they evaluated Mike Yenni’s job performance. The sample size from the October study yields a margin of error of +/- 4.8% at a 95% confidence rate.
Chervenak, Edward, "March 2018 Jefferson Parish Sheriff’s Election Survey" (2018). Survey Research Center Publications. Paper 52.