Answer to Question #105675 in Statistics and Probability for suresh

Question

The objective of building a confidence interval is to capture the ---- within its interval

A> Sample proportion
B> Sample standard deviation
C> Population proportion
D> Population standard deviation
E> None of the above

Answer 1

The objective of building a confidence interval is to capture D) the population standard deviation within its interval or to capture C) the population proportion within its interval. So the answer is C) and D). Building a confidence interval for the population proportion we use the normal distribution or the t-distribution. Building a confidence interval for the population standard deviation we use the chi-square distribution.