Question

A confidence interval (CI) is a range of scores with specific boundaries that should contain the ______ mean.

(A) sample
(B) population
(C) standard error
(D) none of the above

Answer 1

A confidence interval (CI) is a range of scores with specific boundaries that should contain the population mean.

Step-by-step explanation:

90% confidence interval indicates that a score within the boundaries is 90% likely to represent the actual mean of the population.