Question: A 95% confi dence interval for a mean (a) Is wider than a 99% confi dence interval. (b) In repeated samples will include the population

A 95% confi dence interval for a mean

(a) Is wider than a 99% confi dence interval.

(b) In repeated samples will include the population mean 95% of the time.

(c) Will include the sample mean with a probability of 1.

(d) Is a useful way of describing the accuracy of a study.

(e) Will include 95% of the observations of a sample.

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