Unformatted text preview: However since that is so exact it is actually better to use the numbers 75 to 85 to see which students lie in that range. That would be using the interval estimator effectively. 2. When we say the 95% confidence interval estimate of the mean is 10 plus or minus 2 then the confidence interval found that the interval is either 10 greater or 2 less. 3. It means that since the margin of error is 15 minutes we would be using a 95% confidence interval....
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 Spring '10
 Jensen
 Statistics, Jonathan Stromp

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