If 12,000 72% C.I.'s were constructed, how many of those intervals would contain the true value of u? (thats supposed to be mu)

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- Jul 14th 2010, 03:25 PMJluse09Help please! I dont really understand what they are asking
If 12,000 72% C.I.'s were constructed, how many of those intervals would contain the true value of u? (thats supposed to be mu)

- Jul 14th 2010, 03:39 PMpickslides
Find 72 percent of 12,000.

- Jul 14th 2010, 10:26 PMCaptainBlack
Except that would only be true with probability p=0.8%

Ya gotta lurve elementary stats question with misleading wording.

About 72% of 12000 would be acceptable, but a single number is not.

(The probability of observing exactly 72% of 12000 CI containing the mean is ~0.8%)

CB