A poll of 1125 adults in a certain country found that 23% identified themselves
ID: 3246163 • Letter: A
Question
A poll of 1125 adults in a certain country found that 23% identified themselves as the followers of some religion. The margin of error was 5 percentage points with 99% confidence. Which of the following represents a reasonable interpretation of the survey results? A. In 9% of samples of adults in a certain country, the proportion who identify themselves as the followers of some religion is between 18% and 28%. B. There is between 94% and 100% confidence that 23% of adults in a certain country identify themselves as the followers of some religion. C. There is 99% confidence that the proportion of adults in a certain country who identify themselves as the followers of some religion is between 18% and 28%. D. There is 99% confidence that 23% of adults in a certain country identify themselves as the followers of some religion.Explanation / Answer
answer is option c
lower limit = p-margin of error = 23-5 = 18%
upperlimit = p+margin of error =23+5 =28%