A nationwide study of American homeowners revealed that 64% have one or more lawn mowers. A lawn equipment manufacturer, located in Omaha, feels the estimate is too low for households in Omaha. 1) Can the value 0.64 be rejected if a survey of 490 homes in Omaha yields 331 with one or more lawn mowers?
2) Find the confidence interval of the proportion of all the one hwo have the lawn mowers.
3) Check the assumption used in the 1.