A Recent Survey of 54,000 Randomly Selected U

Multiple Choice

A recent survey of 54,000 randomly selected U.S. adults studied the religious affiliation of Americans. The survey interviewed 645 people in Oregon. Suppose that this is a simple random sample of adult residents of Oregon. Of these 645 people, 116 said they claimed no religious identity. A 95 percent confidence interval for the proportion of all residents of Oregon who claim no religious identity is closest to:

A) 0.16 to 0.20.
B) 0.15 to 0.21.
C) 0.14 to 0.22.
D) 0.13 to 0.23.