The Harris Poll organization has been existence since 1956, when it was founded by Louis Harris who famously was John Kennedy's pollster in 1960. Of late, they do much of their research through the Harris Poll Online panel, which polls people through the Internet. Which of the following groups of people might not be included in the sampling frame, leading to potential undercoverage errors? People without access to the Internet People without a cell phone Members of the population over the age of 65 People without a computer at home