A confidence interval is basically the same as
A) the difference between two means.
B) the range.
C) the standard deviation.
D) a margin of error.

Question

Quizplus · Accepted Answer

A confidence interval is a range of values that is likely to include the true population parameter with a certain level of confidence. The margin of error represents the amount by which the estimate may differ from the true population parameter, and is used to construct the confidence interval. Therefore, option D, a margin of error, is the best choice. Option A is incorrect because a confidence interval is not always calculated using two means. Option B is also incorrect because while a confidence interval is a range, it is a specific type of range calculated using statistical techniques. Option C is incorrect because a standard deviation is a measure of the spread of a distribution, but it is not directly related to calculating a confidence interval.

A Confidence Interval Is Basically the Same as