Statistics
A magazine provided results from a poll of 500 adults who were asked to identify their favorite pie. Among the 500 respondents, 13% chose chocolate pie, and the margin of error was given as ±5 percentage points.
Describe what is meant by the statement that “the margin of error was given as ±5 percentage points.”Choose the correct answer below.
A.The statement indicates that the study is only 5% confident that the true population percentage of people that prefer chocolate pie is exactly 13%.
B.The statement indicates that the interval 13%±5% is likely to contain the true population percentage of people that prefer chocolate pie.Your answer is correct.
C.The statement indicates that the study is 100%−5%=95% confident that the true population percentage of people that prefer chocolate pie is 13%.
D.The statement indicates that the true population percentage of people that prefer chocolate pie is in the interval 13%±5%.
Correct answer (B)