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OpenStax, Statistics §8.1 A Single Population Mean Using the Normal Distribution · Exercise 43 · Statistics · Normal distribution

A Single Population Mean Using the Normal Distribution · Exercise 43

What is meant by the term 90 percent confident when constructing a confidence interval for a mean?

(a) If we took repeated samples, approximately 90 percent of the samples would produce the same confidence interval.
(b) If we took repeated samples, approximately 90 percent of the confidence intervals calculated from those samples would contain the sample mean.
(c) If we took repeated samples, approximately 90 percent of the confidence intervals calculated from those samples would contain the true value of the population mean.
(d) If we took repeated samples, the sample mean would equal the population mean in approximately 90 percent of the samples.

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OpenStax, Statistics · §8.1 A Single Population Mean Using the Normal Distribution · Exercise 43

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