At least one of the answers above is NOT correct. (2 points) Over half of all American teens (ages 12 to 17 years) have an online profile, mainly on Facebook. A random sample of 472 teens with profiles found that 353 included photos of themselves. (a) Give the 99% large-sample confidence interval for the proportion p of all teens with profiles who include photos of themselves. Large-sample Interval: .6964 to .7994 (b) Give the plus four 99% confidence interval for p . (The plus-four interval always pulls the results away from 0% or 100%, whichever is closer. Even though the condition for using the large-sample interval is met, the plus four interval is more trustworthy.) Plus four Interval: to Note: You can earn partial credit on this