A 99% confidence interval for the mean µ of a population is computed from a random sample and found to be 6+ 3. We may conclude that (a) there is a 99% probability that µ is between 3 and 9. (b) the true mean is 6 and the true margin of error is 3, both with 99% probability. (c) if we took many, many additional random samples, and from each computed a 99% confidence interval for µ, approximately 99% of these intervals would contain µ. (d) All of the above.

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4. A 99% confidence interval for the mean u of a population is computed from a random sample and found to be
6+ 3. We may conclude that
(a) there is a 99% probability that u is between 3 and 9.
(b) the true mean is 6 and the true margin of error is 3, both with 99% probability.
(c) if we took many, many additional random samples, and from each computed a 99% confidence interval for µ,
approximately 99% of these intervals would contain u.
(d) All of the above.
Transcribed Image Text:4. A 99% confidence interval for the mean u of a population is computed from a random sample and found to be 6+ 3. We may conclude that (a) there is a 99% probability that u is between 3 and 9. (b) the true mean is 6 and the true margin of error is 3, both with 99% probability. (c) if we took many, many additional random samples, and from each computed a 99% confidence interval for µ, approximately 99% of these intervals would contain u. (d) All of the above.
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