<title>Calculating confidence intervals on the mean with the Students-t distribution</title>
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The formula for the interval can be expressed as:
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Where, <span class="emphasis"><em>Y<sub>s</sub></em></span> is the sample mean, <span class="emphasis"><em>s</em></span>
is the sample standard deviation, <span class="emphasis"><em>N</em></span> is the sample
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<p>
- The quantity α   is the maximum acceptable risk of falsely rejecting the
+ The quantity α is the maximum acceptable risk of falsely rejecting the
null-hypothesis. The smaller the value of α the greater the strength
of the test.
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