in a survey on supernatural experiences 726 of 4005 adult americans surveyed reported that they had seen a ghost. assume that this sample is representative of the population of adult americans. use salt

a. use the given information to estimate the proportion of adult americans who would say they have seen a ghost. rouynd answer three decimal places

c. calculate the margin of error. three decimal places

e. construct a 90% confidence interval for the proportion of all adult americans who would say they have seen a ghost. round three places