...practicing and need help

1. A local board of education conducted a survey of residents in the community concerning a property tax levy on the coming local ballot. They randomly selected 403 residents in the community and contacted them by telephone. Of the 403 residents surveyed, 297 supported the property tax levy. Let p represent the proportion of residents in the community that support the property tax levy. What is the 85% confidence interval for p?

2. About 48% of all US adults try to "pad" their insurance claim (they ask for more than the claim is worth). Suppose that you are the director of an insurance adjustment office. Your office has just received 138 insurance claims to be processed in the next few days. What is the standard deviation for the number of claims that will be padded?