What percent of Americans would feel safe riding in a self-driving car? One survey of 109 Americans found a 90% confidence interval to be (0.155,0.285).
(a) What was the value of p^ for this survey? _________ (2 decimals)
Give the margin of error for the above confidence interval: __________ (3 decimals)

(b) How should the margin of error be interpreted?
o With 90% confidence, this is the amount of error due to bias and other mistakes that were made in the sampling process.
o With 90% confidence, this is the average error between the sample proportion and the true proportion.
o With 90% confidence, the true proportion is no more than this distance from the sample proportion.

(c) Suppose that for the same survey data, a 99% confidence interval was also computed. Which interval, if any, would have the larger margin of error?
o The 90% confidence interval.
o The 99% confidence interval.
o Both intervals have the same margin of error since they're based on the same survey data.