Point estimate

How do you find the point estimate?

In AP Stats, the point estimate is the observed sample mean or sample proportion. For a two-sample interval, it is the difference in the observed means or observed proportions.

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it is the center of the confidence interval

will it be given or do we have to calculate it?

if 0 is included in the interval what does that mean again?

That is it plausible that there is no difference

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Depends. As Krish said, in a given interval, we assume in AP Stats that the point estimate is in the center. Use the midpoint formula: (left endpoint + right endpoint) / 2.

When constructing your own, use the sample statistic or difference as the center.

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