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web-apps/apps/spreadsheeteditor/main/resources/help/en/Functions/confidence-t.htm

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<!DOCTYPE html>
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<title>CONFIDENCE.T Function</title>
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<input id="search" class="searchBar" placeholder="Search" type="text" onkeypress="doSearch(event)">
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</div>
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<h1>CONFIDENCE.T Function</h1>
<p>The <b>CONFIDENCE.T</b> function is one of the statistical functions. It is used to return the confidence interval for a population mean, using a Student's t distribution.</p>
<p>The <b>CONFIDENCE.T</b> function syntax is:</p>
<p style="text-indent: 150px;"><b><em>CONFIDENCE.T(alpha, standard-dev, size)</em></b></p>
<p><em>where</em></p>
<p style="text-indent: 50px;"><b><em>alpha</em></b> is the significance level used to compute the confidence level, a numeric value greater than 0 but less than 1.</p>
<p style="text-indent: 50px;"><b><em>standard-dev</em></b> is the population standard deviation, a numeric value greater than 0.</p>
<p style="text-indent: 50px;"><b><em>size</em></b> is the sample size, a numeric value greater than 1.</p>
<p>The numeric values can be entered manually or included into the cells you make reference to.</p>
<p>To apply the <b>CONFIDENCE.T</b> function,</p>
<ol>
<li>select the cell where you wish to display the result,</li>
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<li>click the <b>Insert function</b> <img alt="Insert function icon" src="../images/insertfunction.png" /> icon situated at the top toolbar,
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<br />or right-click within a selected cell and select the <b>Insert Function</b> option from the menu,
<br />or click the <img alt="Function icon" src="../images/function.png" /> icon situated at the formula bar,
</li>
<li>select the <b>Statistical</b> function group from the list,</li>
<li>click the <b>CONFIDENCE.T</b> function,</li>
<li>enter the required arguments separating them by commas,</li>
<li>press the <b>Enter</b> button.</li>
</ol>
<p>The result will be displayed in the selected cell.</p>
<p style="text-indent: 150px;"><img alt="CONFIDENCE.T Function" src="../images/confidence-t.png" /></p>
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