A researcher selects a random sample. A 90% confidence interval for a population mean μ
A. is an interval with margin of error ± 90%.
B. has the property that if we repeatedly selected our random sample in exactly the same way, each time constructing a different 90% confidence interval for μ, then in the long run 90% of those intervals would contain μ.
C. (a) and (b) are both true.
D. is an interval that has width .90.
A. is an interval with margin of error ± 90%.
B. has the property that if we repeatedly selected our random sample in exactly the same way, each time constructing a different 90% confidence interval for μ, then in the long run 90% of those intervals would contain μ.
C. (a) and (b) are both true.
D. is an interval that has width .90.
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B