Political Philosophy According to Gallup, \(21 \%\) of adult Americans consider themselves to be liberal. Respondents of the Sullivan Statistics Survey I were asked to disclose their political philosophy: Conservative, Liberal, Moderate. Go to the book's website to obtain the data file SullivanStatsSurveyI using the file format of your choice for the version of the text you are using. The data may be found under the column "Political philosophy." Treat the results of the survey as a random sample of adult Americans. Do the survey results suggest the proportion is higher than that reported by Gallup? Use an \(\alpha=0.05\) level of significance.