Five hundred seventeen (517) homes in a certain southernCalifornia community are randomly surveyed to determine if theymeet minimal earthquake preparedness recommendations. One hundredseventy-one (171) of the homes surveyed met the minimumrecommendations for earthquake preparedness and 346 did not.
Find the confidence interval at the 90% confidence level for thetrue population proportion of southern California community homesmeeting at least the minimum recommendations for earthquakepreparedness. (Round your answers to three decimal places.)
( _____ , _______ )
