The Docking Institute of Public Affairs at Fort Hays State University surveyed a random sample of adult residents of Kansas, age 18 and older, to assess their rating of the candidates of the 2018 Kansas gubernatorial election. The survey sample consists of random Kansas landline telephone numbers and cellphone numbers. From March 19 to April 2nd, a total of 1,405 Kansas residents were contacted by telephone, and 367 of them completed the survey, resulting in a 26.12% response rate (367/1,405). At a 95% confidence level, the margin of error for the full sample of 367 is 5.12%. A margin of error of 5.12% means that there is a 95% probability that findings among the sample vary no more than +/- 5.12% from the value that would be found if the entire population of interest (adult Kansas residents) were surveyed, assuming no response bias.
Sun, Jian and Montelongo, Luis, "Kansas Governor’s Race Poll Spring 2018" (2018). Docking Institute of Public Affairs. 4.