Eric randomly surveyed 150 adults from a certain city and asked which team in a contest they were rooting​ for, either north high school or south high school. from the results of his​ survey, eric obtained a​ 95% confidence interval of​ (0.52,0.68) for the proportion of all adults in the city rooting for north high. what proportion of the 150 adults in the survey said they were rooting for north high​ school?