Question: After taking a sample and computing Z, a statistician says, "I am 88 percent confident that the population mean is between 106 and 122. What does she really mean?

1. The probability is .88 that \(\mu \) lies between 106 and 122.
2. The probability is .88 that \(\mu \) = 114, the midpoint of the interval.
3. 88 percent of the intervals calculated from samples of this size will contain \(\mu \)
4. All of these.
5. a and c but not b.

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