In a survey of 450 randomly selected gun owners, it was found that 220 of them said they owned a gun primarily for protection.Find the margin of error and 90% confidence interval for the proportion of...

In a survey of 450 randomly selected gun owners, it was found that 220 of them said they owned a gun primarily for protection.Find the margin of error and 90% confidence interval for the proportion of all gun owners who would say that they own a gun primarily for protection. Round all answers to 2 decimal places.