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71 lines
3.5 KiB
HTML
71 lines
3.5 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<title>TTEST Function</title>
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<meta charset="utf-8" />
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<meta name="description" content="" />
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<script type="text/javascript" src="../callback.js"></script>
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</head>
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<body>
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<div class="search-field">
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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>TTEST Function</h1>
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<p>The <b>TTEST</b> function is one of the <a href="../UsageInstructions/InsertFunction.htm#statistical" onclick="onhyperlinkclick(this)">statistical functions</a>. It is used to return the probability associated with a Student's t-Test. Use <b>TTEST</b> to determine whether two samples are likely to have come from the same two underlying populations that have the same mean.</p>
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<h3>Syntax</h3>
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<p><b><em>TTEST(array1, array2, tails, type)</em></b></p>
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<p>The <b>TTEST</b> function has the following arguments:</p>
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<table style="width: 40%">
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<tr>
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<th style="background-color: #f4f4f4" width="150ch"><b>Argument</b></th>
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<th style="background-color: #f4f4f4"><b>Description</b></th>
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</tr>
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<tr>
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<td><b><em>array1</em></b></td>
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<td>The first range of numeric values.</td>
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</tr>
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<td><b><em>array2</em></b></td>
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<td>The second range of numeric values.</td>
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</tr>
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<tr>
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<td><b><em>tails</em></b></td>
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<td>The number of distribution tails. If it is 1, the function uses the one-tailed distribution. If it is 2, the function uses the two-tailed distribution.</td>
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</tr>
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<tr>
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<td><b><em>type</em></b></td>
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<td>A numeric value that specifies the kind of t-Test to be performed. The possible values are listed in the table below.</td>
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</tr>
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</table>
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<p>The <b><em>type</em></b> argument can be one of the following:</p>
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<table style="width: 40%">
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<tr>
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<th style="background-color: #f4f4f4"><b>Numeric value</b></th>
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<th style="background-color: #f4f4f4"><b>The kind of t-Test</b></th>
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</tr>
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<tr>
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<td><b><em>1</em></b></td>
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<td>Paired</td>
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</tr>
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<tr>
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<td><b><em>2</em></b></td>
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<td>Two-sample equal variance (homoscedastic)</td>
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</tr>
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<tr>
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<td><b><em>3</em></b></td>
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<td>Two-sample unequal variance (heteroscedastic)</td>
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</tr>
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</table>
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<h3>Notes</h3>
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<p><a href="../UsageInstructions/InsertFunction.htm#applyfunction" onclick="onhyperlinkclick(this)">How to apply</a> the <b>TTEST</b> function.</p>
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<h3>Examples</h3>
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<p>The figure below displays the result returned by the <b>TTEST</b> function.</p>
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<p><img alt="TTEST Function" src="../images/ttest.png" /></p>
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</div>
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</body>
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</html> |