According to Gallup, 21% of Americans consider themselves to be liberal. The Sullivan Statistics Survey asked respondents

Question:

According to Gallup, 21% of Americans consider themselves to be liberal. The Sullivan Statistics Survey asked respondents to disclose their political philosophy: Conservative, Liberal, Moderate. Treat the results of the Sullivan Statistics Survey as a random sample of adult Americans. Do the survey results suggest the proportion is higher than that reported by Gallup? Use an α = 0.1 level of signiﬁcance.